Search found 3 matches

by MagSec4
Tue Jan 27, 2015 7:14 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Launch to Lovejoy (2015 Jan 22)
Replies: 5
Views: 33193

Re: APOD: Launch to Lovejoy (2015 Jan 22)

Why is there no planetary nebula around the Sirius star system, if Sirius B was not long ago as massive as possibly 7 solar masses?
by MagSec4
Sun Dec 30, 2012 2:49 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Doomed Star Eta Carinae (2012 Dec 30)
Replies: 30
Views: 5561

Re: APOD: Doomed Star Eta Carinae (2012 Dec 30)

I have a question for anyone with more expertise on the matter: Everywhere I've read on the subject, it says Eta Carinae is a prime candidate for a supernova soon. Its mass is also reported everywhere as either 100 or 150 solar masses. Yet the physics of stellar progression expects stars between rou...
by MagSec4
Wed Jul 18, 2012 1:36 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submission Gallery: July Conjunctions & Occultations
Replies: 26
Views: 13087

Re: Submission Gallery: July Conjunctions & Occultations

Image
This was on the 15th, over the prairie in Colorado. And it was worth waking up early for :D
Full-size version available.