Go Back   IceInSpace > Images > Solar System

Reply
 
Thread Tools Rate Thread
  #1  
Old 19-10-2019, 05:54 PM
John Hothersall's Avatar
John Hothersall
Registered User

John Hothersall is offline
 
Join Date: Apr 2007
Location: Thornlands, Brisbane.
Posts: 1,346
Quick Eris 136199 2/3 Oct 2019

SPX350 F9, ASI290, Baader L filter. 2nd + 3rd October 2330 local time.

Eris is in Cetus near alpha Piscium in a fairly starless area discovered formally in 2005. Wanted to see if my uncooled ASI290 could get this with 5sec exposures at mag 18.76, seeing was avg to fair as usual.

Eris is the Goddess of strife and discord. Diam 2326km, Incl 44°, greater mass than Pluto despite similar size because there is a bigger metal core (Moon is 4.6 times the mass of Eris). Its distance is 95AU from Sun with an orbit of 557 years, rotation of 26hrs.

This Dwarf Planet really needs a cooled 16bit camera with longer exposure, it can be imaged in an 80mm scope fairly well this way.

Regards, John.
Attached Thumbnails
Click for full-size image (eris 2 day movement-annotated.jpg)
20.2 KB33 views
Click for full-size image (GIF-eris.gif)
184.0 KB30 views
Reply With Quote
  #2  
Old 19-10-2019, 07:14 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,704
Very nice John, these ZWO CMOS cameras are ridiculously good.

I managed to record Eris using my Vixen 4" F9 refractor when it was known as 2003 UB313, but the Brisbane skies were a lot less light polluted back in 2005.

Cheers

Dennis
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

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 06:24 AM.

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