Go Back   IceInSpace > Beginners Start Here > Beginners Talk
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 09-07-2013, 10:47 PM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Saturn?

Apparently in June Saturn could be seen all night. Is this the case for July also? Where and when is the best time to find her?

cheers
A
Reply With Quote
  #2  
Old 09-07-2013, 11:01 PM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,979
Saturn is up most of the night in July, setting around 4am. We are past the closest approach, called opposition, and we are now leaving it behind as we circle the Sun.

When the Sun has set, look straight up. You'll see two bright stars close to each other almost directly overhead. The one to the East (on the right) is Saturn. Its two give away features are its slightly yellower colour, and it doesn't twinkle like stars do. It will be directly overhead around 10pm. The 'head' of the constellation Scorpio is "looking" in the direction of Saturn too. Next year, Saturn's orbit will see it located even closer, and in 2015 it will be smack bang in its head.

Mental.
Reply With Quote
  #3  
Old 09-07-2013, 11:12 PM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Thanks Alexander, I like that time and location! Hopefully it's clear tomorrow night so I can lug the dob out to take a look!
Reply With Quote
  #4  
Old 10-07-2013, 10:53 PM
Wavytone
Registered User

Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Quote:
Originally Posted by mbyrr View Post
Where and when is the best time to find her
Early evening, 6-8pm.

- Face north (the sun sets in the west, a good clue).

- Looking north, the two or three brightest objects are Arcturus (low on the northern horizon) which is a slightly yellow star, then higher up you will see two about equal brightness. The left one is a brilliant white star - Spica, and the object on the right will be distinctly yellow and does not twinkle - that is Saturn.
Reply With Quote
  #5  
Old 10-07-2013, 10:59 PM
moonunit (Joe)
Registered User

moonunit is offline
 
Join Date: Jul 2012
Location: Naracoorte SA
Posts: 40
What are some things I should be able to see in Saturn, cassini division is one, can also see cloud bands, how many moons and am I able to see shadows of the moons like Jupiter?
Reply With Quote
  #6  
Old 10-07-2013, 11:11 PM
Wavytone
Registered User

Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
This depends on how good the seeing is, and your scope. You won't be seeing shadows transit across the disk or rings with ordinary amateur gear, though not beyond the 12" f/23 schiefspiegler that Barry Adcock had. That was a rather special scope, however and he often had excellent seeing.
Reply With Quote
  #7  
Old 11-07-2013, 09:42 AM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Yes I saw it last night, fantastic!!
I've been waiting a year to find her, what a sight!



Note that I couldn't use my Barlow. Seems like everything I looked at with the barlow was a large out of focus circle with a black hole in the middle. Am I not using it properly or what can I try to see with it? I tried it with all 3 of my lenses too. I thought it was good for planets? It's the Bintel 2" ED.
Reply With Quote
  #8  
Old 11-07-2013, 10:55 AM
The_bluester's Avatar
The_bluester (Paul)
Registered User

The_bluester is offline
 
Join Date: Feb 2011
Location: Kilmore, Australia
Posts: 3,344
You may need to refocus a fair way when putting in the Barlow, did you run out of focusser travel?

I have been lucky in that every eyepiece I have will come to focus with or without barlow and whichever of my diagonals I put in.
Reply With Quote
  #9  
Old 11-07-2013, 06:55 PM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Hi Paul, yeah I think I'm running out of focusser travel. The circle gets smaller but eventually I can't focus any further. How can I resolve this?

cheers
A
Reply With Quote
  #10  
Old 11-07-2013, 09:33 PM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,979
Anthony, are you needing to pull the draw tube of the focuser all the way out or in?

If out, the solution is easy, and could mean one of two things: The easiest is to pull the barlow out from the focuser. I have the same 2" barlow, and its tube is some 12cm or so long, so you can pull it out at least half way. This will give you more focus travel. If pulling the barlow and EPs isn't still enough, you can get "extension tubes". They just set the EP, barlow, whatever, back out from the focuser.

Now, if you are rucking IN the draw tube, not much that can be easily done. Sorry.

Mental.
Reply With Quote
  #11  
Old 12-07-2013, 04:19 PM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Thanks for the advice, Mental. I can't remember which way I was "rucking", I will go out on the next clear night and try it again, cheers.
Reply With Quote
  #12  
Old 12-07-2013, 05:05 PM
Wavytone
Registered User

Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Rucking ? Is that centre forward of full back ?

Racking, surely, as in 'rack & pinion' focusser...something we don't see so often these days. "Crayfording" doesn't quite work for me...
Reply With Quote
  #13  
Old 30-07-2013, 11:43 AM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Following Mental's advice, I got the barlow to focus better. I got a nice view of Venus's craters, since she's been quite bright in the sky lately.
Reply With Quote
  #14  
Old 30-07-2013, 06:18 PM
barx1963's Avatar
barx1963 (Malcolm)
Bright the hawk's flight

barx1963 is offline
 
Join Date: Nov 2008
Location: Mt Duneed Vic
Posts: 3,981
Quote:
Originally Posted by mbyrr View Post
Following Mental's advice, I got the barlow to focus better. I got a nice view of Venus's craters, since she's been quite bright in the sky lately.
Antony
Not sure what you mean by "Venus's craters"? The only body you would see craters on would be the moon. Venus is permanently covered in very dense clouds so views of the surface are impossible.

Malcolm
Reply With Quote
  #15  
Old 30-07-2013, 06:42 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Yep, no craters on this baby!
Attached Thumbnails
Click for full-size image (venus mono and colour 30th July.jpg)
11.5 KB30 views
Reply With Quote
  #16  
Old 31-07-2013, 10:59 AM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Ha, well there you go. Not sure what I was looking at then. It definitely wasn't the moon, I would have burned my eyes out without a moon filter, especially through a barlow, right, even if the moon had shrunk to that size miraculously somehow!

I'll have another look tonight, if I can get home early enough before it falls below the rooftops to the west...
Reply With Quote
  #17  
Old 31-07-2013, 12:37 PM
sil's Avatar
sil (Steve)
Not even a speck of dust

sil is offline
 
Join Date: Jun 2012
Location: Canberra
Posts: 1,474
The craters were probably specks of dust on the eyepiece or floaters in your eye.

Gotta love viewing the planets, I re-fall in love with them each time.
Reply With Quote
  #18  
Old 31-07-2013, 01:16 PM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
HOLLY: Well, the thing about a Black Hole - it's main distinguishing
feature - is it's black. And the thing about space, your basic space
colour is black.

HOLLY: As it transpired, there weren't any Black Holes.
RIMMER: But you saw them -- you saw them on the monitor.
HOLLY: They weren't Black Holes.
RIMMER: What were they?
HOLLY: Grit. Five specks of grit on the scanner-scope. See, the thing
about grit is, it's black, and the thing about scanner-scopes...
Reply With Quote
  #19  
Old 01-08-2013, 10:01 AM
barx1963's Avatar
barx1963 (Malcolm)
Bright the hawk's flight

barx1963 is offline
 
Join Date: Nov 2008
Location: Mt Duneed Vic
Posts: 3,981
Quote:
Originally Posted by mbyrr View Post
Ha, well there you go. Not sure what I was looking at then. It definitely wasn't the moon, I would have burned my eyes out without a moon filter, especially through a barlow, right, even if the moon had shrunk to that size miraculously somehow!

I'll have another look tonight, if I can get home early enough before it falls below the rooftops to the west...
If it was a REALLY bright object in the western sky, then it is Venus, should show a partial crescent at the moment I think.
BTW, a barlow will not make objects brighter, it actually makes them appear larger which actually dims them. Obviously if you double the moons apparent size, you spread the light over 4 times the area so you dim it by 4 times.

Only a larger aperture will make an object brighter.

Cheers

Malcolm
Reply With Quote
  #20  
Old 01-08-2013, 10:07 AM
mbyrr's Avatar
mbyrr (Antony)
Lost in space

mbyrr is offline
 
Join Date: May 2012
Location: Oakleigh, VIC
Posts: 75
Ah interesting point, Malcolm, I didn't know that.

Anyway, I'm pretty sure it was Venus, tho obviously the seeing of craters seems unlikely. As Holly said, it must have been "grit".
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 01:47 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement