I know the other two must be Mirfak or Algenib(alpha) and the second is Algol(beta) but what is the third one???????
Thank you
2006-10-10 15:31:15 · 6 answers · asked by Crimson 2 in Science & Mathematics ➔ Astronomy & Space
It depends on when you look.
The "lucidia" (brightest star) of Perseus is named either Mirfak or AlGenib, but we call it Alpha Perseus and it has a visual magnitude of about 1.79.
The second brightest star depends on when you look. Normally, the second brightest star is Algol, the "Demon" star, also called Beta Persei, is an eclipsing variable star that varies in brightness from a maximum of 2.3 down to a minimum of 3.5 over about a 68 hour cycle.
The third brightest is a tossup between:
Gamma Per: 2.93
Delta Per: 3.01 (variable)
Eta Per: 2.89 (variable)
Depending on the period of the variables in the above list, the current "top three brightest" in Perseus can vary from hour to hour.
2006-10-10 17:02:02 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Perseus Constellation Stars
2016-11-09 19:18:10 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Gamma Persei is the third brightest, but it doesn't have a name. Which is odd, since some of the fainter stars in the constellation do have names!
Miram is the third brightest *named* star in Perseus.
2006-10-10 17:07:04 · answer #3 · answered by kris 6 · 0⤊ 0⤋
The third brightest star in Perseus doesn't have a common name, it's just known as Gamma Persei, magnitude 2.91.
2006-10-10 17:03:13 · answer #4 · answered by injanier 7 · 0⤊ 0⤋
You are seeing comet 17 p Holmes. I was helping a friend move the other night and saw it, and I just happened to have my new scope with me,so we pointed it towards it and WOW......fine site thru scope. I was Like what the...... I knew there were a few comets around but I didn't think they could be seen with the naked eye. When I got home I looked it up online and discovered it was comet 17 p Holmes and there had been an explosion on it bringing it down from mag. 17 to mag 2.5 ........ visible mag. is 6 and below.......pretty cool
2016-03-17 04:29:27 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Not Paris Hilton, that's for sure.
2006-10-10 15:37:27 · answer #6 · answered by kentclark_007 1 · 0⤊ 0⤋