Jump to content

Observing and Imaging Double and Variable Stars

U Orionis

By Lady Isabella
February 1, 2009 in Observing and Imaging Double and Variable Stars

Share

Followers 0

Recommended Posts

Lady Isabella

Posted February 1, 2009

- Share

Posted February 1, 2009

The long period variable star U Orionis reaches maximum brightness

this month, and is currently visible in binoculars at around mag.7.5.

It is a strong source of SiO, OH and water vapour maser emission.

The star was discovered as being variable by J.E.Gore in 1885, and

being close to Chi Ori makes it an easy to find object. Its typical range

is mag 6.3 to 12.0 over a period of 368 days.

0.7' west of U Ori is the eclipsing binary star UW Ori.

Link to comment

Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Share

Followers 0

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Similar Content
- Why is The Lambda Orionis Cluster called Aunt Margaret's Mirror?
  
  By Agerskov, February 25
  - 8 replies
  - 483 views
- 32 and 52 Orionis
  
  By Stu, January 14, 2022
  - 12 replies
  - 441 views
- Trapezium? Trapezoid? Theta-1 Orionis.
  
  By Zermelo, January 22, 2022
  - 0 replies
  - 246 views
- Meissa or Lambda Orionis Nebula HaRGB. 1 2
  
  By ollypenrice, December 10, 2010
  - 26 replies
  - 4,286 views

×

Browse
- Back
- Forums
- Members
- Gallery
- Events
- Blogs
- Code of Conduct
- Staff
- Online Users
Activity
Resources
Code of Conduct
Our Picks
Clubs

×

Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.

I accept

Sign In