It is currently Wed Feb 19, 2020 11:11 am


Post new topic Reply to topic  [ 34 posts ]  Go to page Previous  1, 2, 3
Author Message
 Post subject: Re: The Return of Venus!
PostPosted: Fri Jun 08, 2018 2:44 pm 
Offline

Joined: Mon Jan 18, 2010 9:25 am
Posts: 5327
Hi Bob,
Venus is nice now.
Some clear nights.

I also saw Saturn for first time. It is very low for me.

Haven't seen any NLC.

225x? 80mm refractor.

Regards,
David


Top
 Profile Send private message  
 
 Post subject: Re: The Return of Venus!
PostPosted: Fri Jun 08, 2018 3:04 pm 
Offline

Joined: Thu Jun 02, 2016 11:32 am
Posts: 478
Location: New Farnley, Leeds lat 53.8N long 1.6W
Hello David, you are right to query the magnification. Actually the magnification (x165) is the correct figure; the wrong one, I now notice, is the focal length (8mm) of the eyepiece when it should read "11mm Tele Vue plossl" - now edited. Good job someone is on the ball!
You might also notice that I have swapped from the 90mm refractor, back to the old faithful 80mm after I have cleaned the objective (first time in 25 years) and changed the old, worn focuser for a new one. The 90mm is a good double star instrument but I prefer the 80mm for the Moon and planets. Old habits?
I'm looking for NLC but no luck yet.
Kind thoughts to you, Bob


Top
 Profile Send private message  
 
 Post subject: Re: The Return of Venus!
PostPosted: Thu Jun 14, 2018 9:08 pm 
Offline

Joined: Mon Jan 18, 2010 9:25 am
Posts: 5327
Venus seen easily and quite bright with unaided eyes and distance glasses 4 minutes before sunset this evening in a transparent sky.

I haven't yet seen any NLC this season.

Regards,
David


Top
 Profile Send private message  
 
 Post subject: Re: The Return of Venus!
PostPosted: Fri Jun 15, 2018 9:29 pm 
Offline

Joined: Thu Jun 02, 2016 11:32 am
Posts: 478
Location: New Farnley, Leeds lat 53.8N long 1.6W
2018 June 15, 21.05 UT. 80mm achromatic refractor f11.4, x165 with 11mm Tele Vue plossl and x2 TV Barlow. Seeing Ant IV, transparency good, sky - twilight. Disc diameter 14.2 arcsec. Phase estimated at 72% by eye with W15 yellow filter, comparing the eyepiece view and interpolating with 5% incremental phase profile diagrams. Reliability poor due to seeing and no further disc work attempted.
Best wishes, Bob


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 34 posts ]  Go to page Previous  1, 2, 3

All times are UTC


Who is online

Users browsing this forum: Google [Bot] and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group