Seeing Uranus - Two Nights of Celestial Wonders

  • Context: Stargazing 
  • Thread starter Thread starter Andy Resnick
  • Start date Start date
  • Tags Tags
    Uranus
Click For Summary

Discussion Overview

The discussion revolves around astrophotography of Uranus and its moons, specifically focusing on images captured over two consecutive nights. Participants share their experiences, technical details of their setups, and observations related to celestial photography.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Participants share images of Uranus and discuss the visibility of its moons, specifically identifying Titania, Oberon, and Ariel.
  • Some participants express nostalgia about their own experiences observing Uranus and other planets through telescopes.
  • There is a question regarding the appearance of background stars in the images, with assumptions made about exposure time affecting visibility.
  • Technical details are provided about the imaging setup, including the use of a DSLR and telephoto lens on an equatorial mount.
  • One participant notes the loss of color in Uranus due to longer exposure times aimed at capturing the moons.
  • Questions arise about the identification of the moons, particularly why Ariel is included among the identified moons, with some uncertainty expressed about the actual identification.

Areas of Agreement / Disagreement

Participants generally share similar experiences and technical discussions, but there is no consensus on the identification of the moons or the reasons behind certain observations. Multiple viewpoints on the imaging process and outcomes are present.

Contextual Notes

Some participants mention limitations in their imaging setups and the effects of exposure settings on the final images, but these aspects remain unresolved.

Who May Find This Useful

Astronomy enthusiasts, astrophotographers, and individuals interested in celestial observation techniques may find this discussion relevant.

Andy Resnick
Science Advisor
Education Advisor
Insights Author
Messages
7,762
Reaction score
4,005
Sorry for the title, I just can't help myself :)

Anyhow, here's shots from 2 consecutive nights- you can even see 3 moons, probably Titania, Oberon, and Ariel:

DSC_6673_crop_zpsltmnkebl.jpg

(10/10/16 at 11pm)

DSC_6696_crop_zpsi1e6rlf3.jpg

(10/11/16 at 10:40 pm)

Deets: 800/5.6, 8", ISO 2000. Non-bleached images (not shown) were taken at 1", ISO 100.
 
  • Like
Likes   Reactions: Fervent Freyja, 1oldman2, DennisN and 4 others
Astronomy news on Phys.org
Wooo! That's how I felt many years ago when I built a 6" Newtonian and first saw the rings of Saturn.

This may be ignorance on my part: why do some background objects (in the "plane" of what I take to be the moons) suddenly appear at 11pm? I assume exposure time...
 
  • Like
Likes   Reactions: Fervent Freyja and hsdrop
jim mcnamara said:
Wooo! That's how I felt many years ago when I built a 6" Newtonian and first saw the rings of Saturn.

This may be ignorance on my part: why do some background objects (in the "plane" of what I take to be the moons) suddenly appear at 11pm? I assume exposure time...

If I am looking at the same dots, those are stars- you can barely see them in the other image. I tweaked both images before posting, one was originally a jpg and the other originally raw, so there's some nonuniformity there.
 
jim mcnamara said:
Wooo! That's how I felt many years ago when I built a 6" Newtonian and first saw the rings of Saturn.

This may be ignorance on my part: why do some background objects (in the "plane" of what I take to be the moons) suddenly appear at 11pm? I assume exposure time...
you know i think i geeked out for almost a week each for Jupiter and saturn throw my little 4.5 in
 
  • Like
Likes   Reactions: Andy Resnick
Andy Resnick said:
Sorry for the title, I just can't help myself :)

Anyhow, here's shots from 2 consecutive nights- you can even see 3 moons, probably Titania, Oberon, and Ariel:

great shots, Andy :smile: pity that the longer exposing to bring out the moons has caused the loss of the nice blue/green colour of the planet

It was only around 4-5 yrs ago that I saw Uranus for the first time through my own scope
The only other time was around 25 yrs ago through my mates scope, back in New Zealand

I really have to try and add Neptune to the collection one dayDave
 
davenn said:
great shots, Andy :smile: pity that the longer exposing to bring out the moons has caused the loss of the nice blue/green colour of the planet

It was only around 4-5 yrs ago that I saw Uranus for the first time through my own scope
The only other time was around 25 yrs ago through my mates scope, back in New Zealand

I really have to try and add Neptune to the collection one dayDave

Thanks- I have some properly exposed shots of the planet (it really is a nice blue-green), but there's not enough space to cut-n-paste it in without blotting out one of the moons. Neptune is also on my to-do list, and maybe Pluto...

Edit- hey! Neptune is very close to Uranus right now... tonight it's cloudy and Neptune is almost directly next to the moon, but within a week (so the moon is a bit away) it should be 'easy' to locate. Stay tuned...
 
  • Like
Likes   Reactions: davenn
Andy Resnick said:
Sorry for the title, I just can't help myself :)
This helpful hint from, http://nineplanets.org/uranus.html :wink: (Nice shots by the way)
Careful pronunciation may be necessary to avoid embarrassment; say "YOOR a nus" , not "your anus" or "urine us".
 
  • Like
Likes   Reactions: Andy Resnick and davenn
Andy Resnick said:
Sorry for the title, I just can't help myself :)

Anyhow, here's shots from 2 consecutive nights- you can even see 3 moons, probably Titania, Oberon, and Ariel:

Deets: 800/5.6, 8", ISO 2000. Non-bleached images (not shown) were taken at 1", ISO 100.
Nice work, but I'm not quite understanding your setup: were those single shots from a DSLR and telephoto lens? Or a telescope? Must have been on an equatorial/motorized mount, right...?
 
russ_watters said:
Nice work, but I'm not quite understanding your setup: were those single shots from a DSLR and telephoto lens? Or a telescope? Must have been on an equatorial/motorized mount, right...?

yes, cropped single shots with a DSLR and telephoto lens. The lens has a tripod mounting foot that I attach to an equatorial mount.
 
  • Like
Likes   Reactions: russ_watters
  • #10
davenn said:
great shots, Andy :smile: pity that the longer exposing to bring out the moons has caused the loss of the nice blue/green colour of the planet

Here's the composite, I left the bright star in the crop:
DSC_6696-1_zpsuyno9pan.jpg
 
  • Like
Likes   Reactions: DennisN and davenn
  • #11
Andy Resnick said:
probably Titania, Oberon, and Ariel

Why those three? In particular, why Ariel? Miranda too close and Umbriel too dark?

Oh and...hehehe...he said "Uranus!" (couldn't resist either)
 
  • #12
Andy Resnick said:
yes, cropped single shots with a DSLR and telephoto lens. The lens has a tripod mounting foot that I attach to an equatorial mount.
Impressive.
 
  • #13
Vanadium 50 said:
Why those three? In particular, why Ariel? Miranda too close and Umbriel too dark?

Those three moons are the brightest, is all. I have no idea which moons they really are.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
Replies
17
Views
4K
  • · Replies 16 ·
Replies
16
Views
5K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 65 ·
3
Replies
65
Views
12K