BAA Comet Section Meeting (8/7/2023)

A group of us recently attended the British Astronomical Association (BAA) Comet Section Meeting. This was held at the fantastic Greenwich Maritime Museum and organised by the Flamsteed Astronomical Society (FAS).

StartEndSpeakerSubject
09:00Doors Open
09:3009:45Nick James (FAS)Welcome From BAA & FAS
09:4510:15Walk to Greenwich Planetarium
10:1511:00Planetarium (Meteors & Comets)
11:0011:30Walk from Planetarium
11:3011:45Nick JamesComet News
11:4512:15Dr. Richard MilesUpdate on Mission 29P
12:1512:45Helen UsherComet chasers & pro-am
12:4513:45Lunch Break
13:4514:15Jonathan ShanklinComet Analysis
14:1514:45Thomas LehmannComet magnitude estimation using AIRTOOLS
14:4515:15Robin LeadbeaterDissecting Comets using Spectroscopy
15:1516:00Break
16:0016:30Dr John MasonComets & Meteoroid streams
16:3017:30Prof. Alan FitzsimmonsExocomets
17:3018:00Closing discussion
The Published Agenda

Following the introductions the group walked up the Greenwich Observatory Planetarium for a presentation. Unfortunately even though the resident astronomer did an interesting talk, the comfy chairs, lack of sleep and early start meant quite a few eyes started to close !

All the talks were informative ranging from Helen’s talk on her outreach efforts working with schools and enabling the students to submit their comet observations and as a result being cited on publications. The talks on Comet analysis, estimating magnitudes to the techniques and equipment used to perform spectroscopy on the coma, ion tail and dust tail.

The final section of talks was covered the charismatic Dr John Mason talking about predicting the future meteor storm intensity based on the earth passing through different dust clouds of past comet passes.

Professor Alan Fitzsimmons talked about the recent efforts and discoveries made on exocomets using new observatories like TESS and JWST.

Our gratitude goes to the BAA, Flamsteed Astronomical Society and the fantastic Greenwich Museum staff for providing us with a great day.

BASEG Members

Hopefully at some point in the near future the talks will be found at the BAA’s Youtube channel.

Tenerife 2023 Expedition Booked

So BASEG have recently booked our flights and hotel accomodation for our Tenerife 2023 Expedition. We now have a grand total of 11 participants and as long as the world does not have a repeat of global ‘Human Malware’ epidemic or a deranged lunatic doesn’t try to blow the world up then we will going to Mount Teide for Astronomy/Astrophotography.

Quite of few of the group have been purchasing Harmonic Mounts (ZWO/Pegasus) in an attempt to reduce their travelling weight. It will be interesting to see what scopes are used on the mobile mounts …. interesting times.

Tenerife June 2022 Expedition

After a hiatus of over 2 years due to COVID-19 and the ensuing pandemic, a group of 6 amateur astronomers have made it out to Tenerife. Alan Lorrain, Bob Trevan, Ian Piper, Mark Radice, your truly Dave Shave-Wall and newcomer Lawrence Saville.

Parador by night

Staying at the Parador hotel, situated just below the base of mount Teide at 2,158m (7,057 ft), with stunning views of the mountain towering an additional mile above our heads.

This trip was the first time more than a couple of us were staying at the Parador, due to not wishing to travel the hour up and the hour down the mountain every night and morning. Also we had been unable to make contact with the MONS telescope personnel at the observatory and the website no longer worked to allow bookings, so we were in need of accommodation, facilities and power.
The Parador seemed like the perfect choice.

Relaxing during the day

We took a sensible flight out to Tenerife with BA at 1:25pm on Saturday, with their generous baggage allowance, most of us opting to fly Business due to the manageable cost which included an upgrade of the allowance from 1 x 23kg to 2 x 32kg checked luggage and the additional 23kg carry on plus an additional allowance of a laptop of 23kg! A couple of us including myself booked 2 further bags as we were carrying heavy equipment.

In hindsight we would look to travel on a different day next time due to the volume of travellers flying from T5. The BA lounge was great and a welcome retreat from the hustle and bustle of the concourse just outside. We took off slightly late and then arrived 4 hours later due to the headwind all the way and it was indeed a pleasant flight.

Nearly there … La Palma sighted

We then went through a quick security check including for our health check verification which we had completed on the SPth site prior to arrival and then waited for our bags. This turned into a lengthy stay of over an hour at the airport and then the realisation that some of our bags were still in London! So with slight annoyance and heavy hearts we set off to Cicar to collect our vehicles and head up the mountain.

The following day Lawrence and I took a trip down to the airport and were reunited with our bags sitting amongst the 50 or so that had made the trip that morning. The route back up the mountain is now our favourite with very few twists and turns and only 1 hour in duration. You take the TF-1 West out of the airport, stopping briefly at Lidl for supplies, then all the way up to Los Gigantes and then take a right, briefly following the TF-82 heading to Chio before turning left onto the TF-38. We follow the TF-38 for about 30km to the T-junction with the TF-21, turning right for the last 7km to the Parador.

Reunited with bags

Dinners at the Parador were superb, the selection was good, the quality amazing and the portion sizes were large. We were all fairly stuffed after 1 hour of eating by 9pm in time to setup in the evenings, which took place out the back of the hotel in the relative darkness by the indoor pool building.

(Dinner)

Textures of Chocolate

The Parador hotel could not have been more accommodating, they moved Bob to a new room to facilitate coming out of the lifts and getting to his room without the need to traverse the stairs. The laid out extension leads for us to various places around the patio to the rear of the hotel where the pool resides. They even turned off all the lights, closed curtains in the restaurant early and left various doors open for us to enter when we needed. They were simply wonderful!

Patio

So what was the the site like for observing? Well whilst we thought the southern horizon was going to be a problem I was observing Omega Centauri at +02 deg altitude at 11:30pm! So pretty amazing. There were various places to setup, most of us choose the corner of the patio area away from the pool building and where several piers were located.

Some setup down by the pool are also and again several piers were located there also.

The piers can be booked, in case someone does turn up with a booking, through Klaus Peter Schröder, email Klaus-Peter at kps@astro.ugto.mx
An interface plate needs to be made so the first visit would require taking measurements of the top plate to marry the interface plate to. Bob made up a plate before arriving for his Tak mount which worked a treat.

I now have good templates for each of the pier tops if anyone would like an interface plate making up … Bob

Time for some Solar observing
Sync on Venus for daylight observation after some sleep

The EM-2 and Sky90 was left tracking Venus so we could observe Venus during the day. We successfully did a meridian flip and reacquired Venus and then attempted to find Jupiter during daylight using the setting circles, but unfortunately failed but were able to re-acquire Venus.

The seeing was mixed during the week. The first night was average, the second night much better, nights, 3 and 4 were varied throughout the night. Some of use took 5min subs and others 30s or 2mins. What we found was taking shorter exposures allowed us to discard those frames where the seeing was poor and retain those where the seeing was excellent.

Omega Centauri

One evening we took a trip by foot to the the caldera where we used DSLRs to take skycape’s, a welcome break from either visual observing or telescope imaging. A variety of objects were seen and imaged and we had a lot of fun with the different rock formations. A favourite was the actually the church on the way back to the hotel.

Church

Many of us came sporting astronomy T-Shirts, Lawrence kept surprising us by showing off his cool ones we had not seen before. What a geek!

Lawrence is here!

Nights were long which was splendid and days were longer. This gave us time to process images, relax on the patio and have a beer.

Relaxing during the long afternoons

So would we recommend the Parador for an astronomy holiday? Absolutely! Will we come back for BASEG 2023? I think we know the answer to that 😎

Mirador Astir Lasham, 10th July 2020

Comet C/2020 F3 NEOWISE – Esprit 120

21:00 – 02:30

This image has an empty alt attribute; its file name is Comet-C2020-F3-Neowise-50mm-Lens-6D-IMG_1126-1024x683.jpg
Faint Comet C/2020 F3 NEOWISE as the sun sets at Lasham

I had seen a photo about a comet that had brightened and since tonight was the first clear night in a few weeks, it was a Friday and I was free, I thought I would venture out. The comet was C/2020 F3 NEOWISE and was very low, around +6.8 degrees altitude in the North at sunset, dipping down to +3.0 degrees around 1:30am and then starting to rise again.

I asked on the BASEG WhatsApp group where people would go locally with a good horizon and JBS (John Barrie-Smith) came back and said, come on over to my place at Lasham Gliding Club and see the comet from there. A flurry of messages and Lawrence, Gingergeek, Shane, Bob and I were now on for a night out!

We arrived about 9:20pm and all gathered at the gate to the airfield, we then followed John in convey around the airfield to the observing site for the night on one of the airfield pads. We then proceeded to setup and see if we could see the comet above the trees…..

To our surprise the trees looked high but due to the distance the comet was high above them. What follows are a selection of images from the nights observing, taken by myself (Dave Shave-Wall) unless otherwise stated. The comet can be seen in most of them.

Bob and Lawrence observing
Bob observing
Selection of equipment and cars
Comet C/2020 F3 NEOWISE
My Esprit 120ED on Paramount MyT imaging comet almost horizontal
Glider with Milkyway just to left
Jupiter
Glider and Milkyway
Comet C/2020 F3 NEOWISE by Gingergeek – 10s Exp no calibration FSQ85 & Atik460
Lawrence observing
Gingergeek imaging
Gingergeek imaging
Comet C/2020 F3 NEOWISE and Noctilucent Clouds by John Barrie-Smith

Spring BASEG trip to Hacienda in La Palma, Canary Islands April 2020….we hope!

Patio at Hacienda

Alan, Paul and I (Dave) are back off to the beautiful island of La Palma in April assuming the current Coronavirus 19 pandemic has not shut down the TUI airline we are using. We are booked to stay at Tobias’s finca’s at the lovely location some 4,000 ft altitude on the North-West of the island in a vineyard off the beaten track. Turns out to be great fo self-isolation!

I will be taking my large 4″ binoculars, due to weight restrictions by TUI whilst Alan and Paul will be taking travel scopes for astrophotography. During the visit we have 2 finca’s and I hope to get some more objects ticked off my list from the Night Sky Observing Guide (NSOG) book I used last visit doing visual and recording some of my observations as drawings with my new set of pastel materials for my birthday.

One of the finca rooms

Autumn BASEG Trip – September 2020, Massaguel, South France

Chateaux

So after much debate and research at the end of 2019, we finally settled on a group expedition to the south of France. The destination is Massaguel which is just South-East of Toulouse.

Chateaux at Massaguel

We have rented an entire Chateaux within the grounds of a private estate to sleep all 10 of us in separate rooms!

one of the many rooms

Below is the website address

https://www.homeaway.co.uk/p10085221

We have arranged car sharing for the trip, some of us are going to travel down over 2 days and also back over 2 days also. Some are going via other destinations where they are lucky enough to be retired. I am personally taking my new Tesla Model 3 on the road trip and will be going via the Tesla Supercharger network with my friend Shane as a co-driver. We will stop overnight at a hotel with a supercharger on the way down and a different one on the way back. We are also going to travel via Eurotunnel.

Car route for Tesla

The location affords us the ability to take as much kit as we can carry in our vehicles. This helps as we have more recently been affected with tighter and tighter restrictions on luggage capacity on planes.

My own setup required 4 x 25kg suitcases so going in the car is great. The only other way is to fly British Airways and pay for 4 x luggage or to fly business with them and get 2 x 32kg as standard and upgrade for the rest.

A view from the front

The chateaux looks beautiful and is owned and run by a local couple. It resides in a nature reserve and has acres of grounds with enough space for us all to spread out. In conversation with the owners we can run extension cables which we will need to bring with us, outside from internal sockets to run our equipment all night.

Outside

The internals of the chateaux affords us many rooms to gather in, meet, cook, hang out as well as sleep

We are all really looking forward to the trip and hope dearly that by the time September comes, the current Coronavirus 19 pandemic is over.

La Palma Expedition May 2019 – ATHOS Star Camp

So Bob, Alan and I (Dave Shave-Wall) have set off on our next expedition, this time back to La Palma but to a different resort, this time ATHOS Star Camp near on the North West side of the island and some 2,000 ft further down the mountain than when we stayed last November at Tobias’s Finca, Hacienda. I made sure to look out of the window and glimpse our other island we travel to in Tenerife on the way.

I arrived 1 day after Alan and Bob due to a work trip to New York so I flew from there to Madrid, waited 5 hours for my connection and then flew direct to the island landing at 1:30pm local time.

I set off to ATHOS star camp after collecting my hire car, the most direct route would be through the tunnel on the island cutting across East to West, however I was super keen to see the Observatories and MAGIC telescopes and see how the Visitor Centre was coming on since our previous visit. So instead I headed up the mountain to the Roque de la Muchachos to see the sights and then head down the other side to ATHOS.

The MAGIC telescopes and various observatories of course looked wonderful as always. The visitors centre had not change, still being unfinished in only the way the Spanish manage with unfinished projects at scale.

I then headed down to ATHOS where Bob and Alan were already settled in. Alan had warned me about the accommodation before I arrived so I set my expectations low. The accommodation on arrival was what the British would think more akin to a Bournemouth Beach hut, ok slightly bigger but not by much, but the biggest problem were the ants!!!!!

In fact the problem was further compounded by ants also being in the Orangery,  a beautiful building where would be astronomers sit and eat and prepare food. Unfortunately the ants were all over the sides in the kitchen and thus any food you put down! It was a further surprise that nothing had been done to solve the problem. The accommodation Alan and I were to share was so small that the 2 single beds pushed up against the wall had really a narrow gap between them meaning sharing with a friend was very close. Once we had our luggage in there was really no room to move.

By the following morning, after a night of cloud at the this low vantage point on the island at around 2,000 ft and below the inversion layer (we all went up the mountain some 40mins drive to perform our viewing), I woke to find ants in my pyjamas, in my bed too of course, in the wardrobe in my clothes, in the bathroom on washbag and toothbrush. Whilst Alan and Bob are less bothered, I refused to pay good money for this accommodation both in terms of size and quality. So I called our previous host Tobias who owns Hacienda and between him and Christian on site, they found me alternative accommodation that day, which is perfect for me, no ants and at around 4,000 ft so 2,000 ft higher and only 25 minutes drive from the visitors centre rather than 45 minutes up the mountain.

To be fair we should have realised there were going to be problems with ATHOS since the whole booking and confirming the trip had been a nightmare due to poor communication. Not only did we have to call the owner of ATHOS several times, months went past with little or no communication at all to confirm the trip, which to be honest makes you worried about turning up with nowhere to stay if it is not confirmed. Compare that to Tobias at Hacienda and they respond within the hour.

ATHOS star camp is a nice idea, but to be fair to the owner Kai, he needs to improve his communication, booking process and the quality and cleanliness of the accommodation. The site itself is ok from a viewing perspective and the observing pads are a nice touch, also the equipment hire, albeit expensive is there and useful, but that said I would not go again.

So a costly start to the expedition, but by the second day I was delighted to be in comfortable accommodation and to have started some observing up the mountain the previous night.

Viewing Report 7th May 2019 (Night 5) – La Palma

Viewing time period – 21:00 – 03:00

I started this evening by taking another look at the Moon through the binoculars. I showed our host Christian who was amazed how much detail you could see.

I then took another look at Omega Centauri, just because it is so spectacular.

Then I finished my other blog viewing reports and waited for the Milky Way to rise around 3pm so I could do some more visual.

@03:00 I spent some time looking at a number of objects in the Milky Way, but only briefly and I did not record any with the pencil tonight, it was purely a pleasurable evening of seeing across the Milky Way that was at this time still slightly on her side. I looked at M7 the open cluster near the base of the scorpion’s tail, sparkling in the night sky. I then moved to the globular clusters M62 and M19 nearby which could be seen just with Direct Vision. I then peaked at M20 the Trifid and could make out some of the structure in the reflection nebula. Finally I took in M26 and M11 both Open Clusters in Scutum before heading to M17 the Swan nebula and open cluster which as when we viewed a few years ago through the 12″ dob on the island, looked very much like a swan through the 4″ binos.

I then took an early night off to be by 3:30am whilst Alan continued with his Messier Marathon at the other site and Bob continued his imaging.

Viewing Report 6th May 2019 (Night 4) – La Palma

Viewing time period – 21:00 – 2:30

This evening I finished a lovely conversation for over an hour with my daughter and then headed up to the roof of my new accommodation to setup the binoculars and the camera. By 21:30 I started to shoot some scenic photos of the Moon and Aldebaran over the roof of the old house I find myself in alone.

Soon enough and by 22:00 it was dark enough for me to take a few shots of Orion as it was setting in the West, again over the roof creating a lovely photo. I also glimpsed the 1.9 day old Moon at 4.5% illumination through the binoculars which is a wonderful sight. You can actually make out some of the larger craters on the Moons edge with clear definition through these wonderful binos.

@ 23:11 I quickly went out to find Omega Centauri again through the binos as it was such a good sight the other night I wished to see it again. This time I caught this massive glob just as it was setting behind a leafy bush. The fact it almost fills my field of view is amazing, now surround this with the silhouette of the plant it is almost magical. I really wish I could capture the image on camera it was simply breathtaking as I watched for 10mins as it gently moved behind the leaves.

@ 23:19 I put the binos on M67, an Open Cluster in Cancer, which I found by initially finding M44 in the binos then I decided it was easier to put Regulus in Leo, which is a brighter star at mag +1.36, in the frame and then sweep downwards to M67 which was obvious as an open cluster when I found it. The stars come and go looking with averted vision, but I managed to draw a bunch of the stars before moving to the next object.

@ 23:54 I moved to NGC 2903 a galaxy in Leo that was supposed to be fairly large and bright through a small scope, however it was pretty faint. It may of course of been I was not dark adapted, which given I had just come out from inside was probably fair.

@ 00:01 on what was not the 7th May, I took a look at the Trio in Leo. This was a much brighter set of objects and very clearly visible. I could see immediately why Charles Messier missed NGC 3628 as it has a much lower surface brightness than that of the other two galaxies in the Trio, namely M65 and M66. The grouping was very pleasing with a handful of brighter stars within the field of view. I spend 5-10 minutes drawing a rough positioning of the Trio and surrounding stars.

@01:18 I used the new Canon Camera 6D MKII to take a photo of the Plough so Ursa Major as a constellation and single image. I was amazed to see that even in a single 1 minute exposure I could see the spiral galaxy M109 very clearly.

Straight after this I took the camera and took a couple of skyscape shots with two different palm trees in that were being lit from the light from the house which took me round to 2am.

Finally I then went in and started writing up some of my journal, reviewing my objects in the NSOG and of course having a glass of wine and tonight some Tortilla Chips 🙂