Search found 1654 matches

by jeff.stevens
Thu Oct 21, 2021 7:10 pm
Forum: Observing
Topic: Comet Leonard (C/2021 A1)
Replies: 3
Views: 17

Comet Leonard (C/2021 A1)

There's an interesting article about Comet Leonard (C/2021 A1) on the Sky & Telescope website.

Best wishes, Jeff.
by jeff.stevens
Thu Oct 21, 2021 7:05 pm
Forum: Observing
Topic: Nova in Cassiopeia
Replies: 103
Views: 3734

Re: Nova in Cassiopeia

I didn't know that, Bob, so it is a very interesting object indeed. I wonder to what extent professional astronomers are focussing (Edit: no pun intended) on this?

Best wishes, Jeff.
by jeff.stevens
Thu Oct 21, 2021 6:31 pm
Forum: Telescopes and instruments
Topic: Tiny Monolithic Schmidt Cassegrain telescope
Replies: 3
Views: 27

Re: Tiny Monolithic Schmidt Cassegrain telescope

Brian wrote: Thu Oct 21, 2021 5:54 pm I suspect the cameras have been used for ground observations , looking down rather than up,
Yes, that makes sense, as they did briefly mention that was the objective of one of the projects. Very clever stuff. There are some talented people about.

Best wishes, Jeff.
by jeff.stevens
Thu Oct 21, 2021 12:06 pm
Forum: General chat
Topic: Who Do You Think You Are? Tycho Brahe
Replies: 0
Views: 13

Who Do You Think You Are? Tycho Brahe

One of the most recent episodes of this featured Dame Judi Dench , which was a really fascinating watch, brief astronomical reference aside. She has a link in her family tree to Tycho Brahe. It was interesting hearing the Danish historian pronouncing his forename as "too-co". Not a pronunc...
by jeff.stevens
Thu Oct 21, 2021 11:56 am
Forum: Observing
Topic: Nova in Cassiopeia
Replies: 103
Views: 3734

Re: Nova in Cassiopeia

Interesting, Bob. Have you come across any articles discussing these current variations? I haven't had clear enough skies for a long time to attempt an estimate. Each time I go out it seems to be cloudy. This evening might present an opportunity though.

Best wishes, Jeff.
by jeff.stevens
Thu Oct 21, 2021 11:54 am
Forum: Telescopes and instruments
Topic: Tiny Monolithic Schmidt Cassegrain telescope
Replies: 3
Views: 27

Re: Tiny Monolithic Schmidt Cassegrain telescope

Very interesting. It's be nice to see some actual images taken. The Dr. Fullersheit threw me a bit at the end. :D

Best wishes, Jeff.
by jeff.stevens
Fri Oct 15, 2021 9:01 pm
Forum: Observing
Topic: Three Comets Near Auriga
Replies: 8
Views: 53

Re: Three Comets Near Auriga

brian livesey wrote: Fri Oct 15, 2021 7:37 pm It’s possible to see Pluto in a 20cm reflector, assuming a good dark sky.
I think I've a recollection of trying and failing with my 200mm Skywatcher, now I come to think of it, but that would have been from heavily light polluted skies.

Best wishes, Jeff.
by jeff.stevens
Fri Oct 15, 2021 8:56 pm
Forum: Observing
Topic: Moon-Jupiter 15 Oct 2021
Replies: 1
Views: 23

Moon-Jupiter 15 Oct 2021

The Moon and Jupiter are in relative close apparent proximity this evening. Jupiter is some 6.5 degrees to the upper right of the Moon. I've caught brief glimpses of the two, but we have some extensive patchy cloud cover this evening, which is spoiling the view somewhat. I hope others have had bette...
by jeff.stevens
Fri Oct 15, 2021 5:51 pm
Forum: Observing
Topic: Three Comets Near Auriga
Replies: 8
Views: 53

Re: Three Comets Near Auriga

Nigel, what a worthwhile observing session. The view through your 350P Dobsonian must be be very impressive. Is that aperture enough to detect Pluto, just out of interest? Probably a challenging target at best at the moment, setting well before Saturn I think. Spotting comets is very exciting, irres...
by jeff.stevens
Sun Oct 10, 2021 7:27 pm
Forum: Observing
Topic: Forthcoming - Moon & Venus Saturday 9th Oct 2021
Replies: 17
Views: 226

Re: Forthcoming - Moon & Venus Saturday 9th Oct 2021

I saw the crescent at 1625BST, viewed from the seafront at Rhyl. I spotted it using an 8x23 binocular initially, but it was visible to the unaided eye. I couldn't detect Venus, but I wasn't looking for long enough. I was a bit frustrated by the amount of thin haze over parts of the sky where the Moo...
by jeff.stevens
Sun Oct 10, 2021 7:23 pm
Forum: Observing
Topic: Forthcoming - Moon & Venus Saturday 9th Oct 2021
Replies: 17
Views: 226

Re: Forthcoming - Moon & Venus Saturday 9th Oct 2021

mikemarotta wrote: Sun Oct 10, 2021 4:01 pm Astronomers Without Borders asked us to take snapshots.
Unfortunately, the very small file limitations here prevent sharing.
However:
https://necessaryfacts.blogspot.com/202 ... ction.html
Beautiful images.

Best wishes, Jeff.
by jeff.stevens
Sat Oct 09, 2021 9:44 pm
Forum: Observing
Topic: Forthcoming - Moon & Venus Saturday 9th Oct 2021
Replies: 17
Views: 226

Re: Forthcoming - Moon & Venus Saturday 9th Oct 2021

Very nice. You got to see them both, that’s the important thing.

Best wishes, Jeff.
by jeff.stevens
Sat Oct 09, 2021 4:08 pm
Forum: Observing
Topic: Counting sunspots
Replies: 9
Views: 89

Re: Counting sunspots

There are some interesting articles on this. I must confess, I wouldn't know where to start. It seems dependent upon magnification and definition/granularity to me. I see three groups in this image, one simple and two complex, in which I'd struggle to count the individual spots within. Do I group wh...
by jeff.stevens
Fri Oct 08, 2021 9:55 pm
Forum: Observing
Topic: Forthcoming - Moon & Venus Saturday 9th Oct 2021
Replies: 17
Views: 226

Re: Forthcoming - Moon & Venus Saturday 9th Oct 2021

Total cloud cover here, Mike. Well done on observing the Moon and Venus under such challenging conditions.

Best wishes, Jeff.
by jeff.stevens
Fri Oct 08, 2021 9:50 pm
Forum: Announcements
Topic: SPA Forum Maintenance - *** Friday 8th October 10pm ***
Replies: 1
Views: 79

Re: SPA Forum Maintenance - *** Friday 8th October 10pm ***

The upgrade has been completed successfully, and the board is available to use as normal.

Best wishes, Jeff.