Go Back   IceInSpace > Images > Deep Space
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 21-01-2015, 10:25 AM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
NGC2835--Anybody heard of it?

http://www.astrobin.com/150225/0/
This is a pretty little galaxy in Hydra. It's very faint, so really needs much more exposure than the 4 hours I've given it. Still, after looking at the raw images downloading it's turned out better than I thought it would. There are very few images of this one around. I only found one other on IIS.
Details:
Exposure: 1 hour each of R, G and B and 70 min L
Camera: FLI Proline 16803
Mount: AP900
Telescope: 12.5" PlaneWave CDK
Processed in PixInsight.
Geoff

Last edited by Geoff45; 21-01-2015 at 11:16 AM.
Reply With Quote
  #2  
Old 21-01-2015, 10:34 AM
Rod771's Avatar
Rod771 (Rod)
Turn the lights off!

Rod771 is offline
 
Join Date: Aug 2012
Location: Parklea NSW
Posts: 1,207
Still looking good at four hours Geoff. Its hard to image anything in Sydney at the moment
Reply With Quote
  #3  
Old 21-01-2015, 10:37 AM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
A very pretty little galaxy, Geoff, and a great result for 4 hours!
Reply With Quote
  #4  
Old 21-01-2015, 10:42 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,658
Yeah given my fettish (one of a few) with imaging galaxies in recent years I recon I have trolled just about every galaxy list looking for good targets and I do rememeber this one, funny always hard to decide which galaxy to image and one can not image'em all huh? ...so it is good when others hit them like you have here and it's a great looking galaxy and nicely imaged as usual, looks kind of like a cross between the nearby NGC 2997 and NGC 6946 the fireworks galaxy

The new camera looks to be doing a good job too

Mike
Reply With Quote
  #5  
Old 21-01-2015, 10:48 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,175
Very nice Geoff. A noticeable improvement in quality of the image, from the camera right? Good processing as well. Lovely stars and galaxy colour.

A winner.

Greg.
Reply With Quote
  #6  
Old 21-01-2015, 10:59 AM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by Rod771 View Post
Still looking good at four hours Geoff. Its hard to image anything in Sydney at the moment
Thanks Rod

Quote:
Originally Posted by RickS View Post
A very pretty little galaxy, Geoff, and a great result for 4 hours!
Thanks Rod and Rick

Quote:
Originally Posted by strongmanmike View Post
Yeah given my fettish (one of a few) with imaging galaxies in recent years I recon I have trolled just about every galaxy list looking for good targets and I do rememeber this one, funny always hard to decide which galaxy to image and one can not image'em all huh? ...so it is good when others hit them like you have here and it's a great looking galaxy and nicely imaged as usual, looks kind of like a cross between the nearby NGC 2997 and NGC 6946 the fireworks galaxy

The new camera looks to be doing a good job too

Mike
Thanks Mike. As you say it's a nice looking galaxy--more aperture would be good though. The camera works very well (so far).

Quote:
Originally Posted by gregbradley View Post
Very nice Geoff. A noticeable improvement in quality of the image, from the camera right? Good processing as well. Lovely stars and galaxy colour.

A winner.

Greg.
Thanks Greg. I think the FLI is giving me better images for 2 main reasons--bigger pixels (9 microns vs 7.4) and, more importantly I can image at -30 all year round, whereas with the QSI I was often doing -10 on hot summer nights.
Reply With Quote
  #7  
Old 21-01-2015, 11:12 AM
gaa_ian's Avatar
gaa_ian (Ian)
1300 THESKY

gaa_ian is offline
 
Join Date: Dec 2004
Location: Cairns Qld
Posts: 2,405
Great Image Geoff, I love the spiral arms, so distinct !
Now I was going to ask more about it (as I am a visual observer) but instead, here are the details from CDC & the Star Chart:
NGC 2835
Information from catalog: SAC
Saguaro Astronomy Club Database
Magnitude: 10.50
Name: ESO 564-35
Surface brightness: 14.00
Dimension: 6.3 x 4.2 '
Position angle: 8
Class: SBc-a Ring
Description: F
*10 inv f
bet 2 st 9
Fine multi arm spiral
Constellation: Hydra
Attached Thumbnails
Click for full-size image (NGC 2835.jpg)
121.6 KB14 views
Reply With Quote
  #8  
Old 21-01-2015, 11:18 AM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Thanks for the positive comment Ian and thanks for the details.
Geoff
Reply With Quote
  #9  
Old 21-01-2015, 11:48 AM
marc4darkskies's Avatar
marc4darkskies (Marcus)
Billions and Billions ...

marc4darkskies is offline
 
Join Date: Mar 2007
Location: Quialigo, NSW
Posts: 3,143
Very pretty field Geoff! Full res version shows good resolution too so you've got that scope performing well. Your seeing must have been reasonably good too. Any idea what your FWHM was for your raw frames?

Don't get me started on Sydney weather! The good news is when it's been clear the seeing has been pretty good here in Grose Vale.

Cheers, Marcus
Reply With Quote
  #10  
Old 21-01-2015, 11:57 AM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by marc4darkskies View Post
Very pretty field Geoff! Full res version shows good resolution too so you've got that scope performing well. Your seeing must have been reasonably good too. Any idea what your FWHM was for your raw frames?

Don't get me started on Sydney weather! The good news is when it's been clear the seeing has been pretty good here in Grose Vale.

Cheers, Marcus
Thanks for the positive comments Marcus. The FWHM for the raw frames was around the 2.5" mark. Decon on the luminance pushed that down to 1.7". I've occasionally got down to 2" at Wiruna, but not often.
Geoff

Last edited by Geoff45; 21-01-2015 at 05:20 PM.
Reply With Quote
  #11  
Old 21-01-2015, 12:54 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,078
Tiny galaxy with plenty of details. The whole field looks great too. Finely tuned scope.
Reply With Quote
  #12  
Old 21-01-2015, 01:14 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,658
Hey Geoff, forgot to mention too, no obvious sign of decon, well done

Mike
Reply With Quote
  #13  
Old 21-01-2015, 01:49 PM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by strongmanmike View Post
Hey Geoff, forgot to mention too, no obvious sign of decon, well done

Mike
Which means I did it correctly!
Reply With Quote
  #14  
Old 21-01-2015, 02:03 PM
Stevec35 (Steve)
Registered User

Stevec35 is offline
 
Join Date: Aug 2010
Location: Canberra
Posts: 3,654
A very nice result Geoff!

Cheers

Steve
Reply With Quote
  #15  
Old 21-01-2015, 03:01 PM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by multiweb View Post
Tiny galaxy with plenty of details. The whole field looks great too. Finely tuned scope.
Thanks Marc. Yes, it's a great scope. Very pleased with it.

Quote:
Originally Posted by Stevec35 View Post
A very nice result Geoff!

Cheers

Steve
Thanks Steve.
Reply With Quote
  #16  
Old 21-01-2015, 03:37 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Exquisite!

The rendition of the stars is very suitable for the season.
Reply With Quote
  #17  
Old 21-01-2015, 03:45 PM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by Placidus View Post
Exquisite!

The rendition of the stars is very suitable for the season.
Thanks Mike. Do you mean there's too much sparkle and colour?
Geoff
Reply With Quote
  #18  
Old 21-01-2015, 05:32 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Absolutely not too much sparkle and colour! I really really like it exactly as it is, straight up! Showing that some stars are bluer and therefore hotter, while others are more orange and therefore cooler, is completely legitimate scientifically, and the result is very pleasing.
Reply With Quote
  #19  
Old 22-01-2015, 09:40 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
A great looking galaxy photo Geoff.

Very sharp and I love the colours.

A new object for me as well.

Ross.
Reply With Quote
  #20  
Old 23-01-2015, 09:00 AM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by Ross G View Post
A great looking galaxy photo Geoff.

Very sharp and I love the colours.

A new object for me as well.

Ross.
Thanks Ross. A new object for most of us i imagine.
Geoff
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 09:30 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement