Constellations Flashcards
The constellation of Andromeda was named by who and after which figure?
It was named by the second-century Greco-Roman astronomer Ptolemy, after Andromeda, daughter of Cassiopeia, who in Greek myth was chained to a rock to be eaten by the sea monster Cetus.
Andromeda is most prominent:
during autumn evenings in the Northern Hemisphere.
Andromeda is only visible:
north of 40° south latitude.
What is the area of the Andromeda constellation?
722 square degrees
What is the constellation Andromeda’s brightest star?
Alpha Andromedae (Alpheratz)
What is the apparent magnitude of Alpha Andromedae?
2.07 m
Declination of the Andromeda constellation:
37°
Quadrant of Andromeda:
NQ1
Main stars of Andromeda:
16
Bayer/Flamsteed stars of Andromeda:
65
Stars with planets in the Andromeda constellation:
12
Stars brighter than 3.00m in Andromeda:
3
Stars within 10.00 pc (32.62 ly) in Andromeda:
3
Nearest star in Andromeda?
Ross 248 (10.30 ly, 3.16 pc)
Messier objects in Andromeda?
3
Bordering constellations of Andromeda?
- Perseus
- Cassiopeia
- Lacerta
- Pegasus
- Pisces
- Triangulum
What are the other names for Alpha Andromedae?
Alpheratz and Sirrah
What are the characteristics of Alpha Andromedae?
It is an A0p class binary star with an overall apparent visual magnitude of 2.1 and a luminosity of 96 L☉. It is 97 light-years from Earth.
What are the notable stars within the Andromeda constellation?
- Alpha Andromedae
- Beta Andromedae
- Gamma Andromedae
- Delta Andromedae
- Iota Andromedae
- Mu Andromedae
- Upsilon Andromedae
- Xi Andromedae
- Pi Andromedae
- 51 Andromedae
- 56 Andromedae
- R Andromedae
- Z Andromedae
- Ross 248
- 14 Andromedae
What is another name for Beta Andromedae?
Mirach
What are the characteristics of Beta Andromedae?
It is a red-hued giant star of type M0 located in an asterism known as the “girdle.”
It is 198 light-years away, has a magnitude of 2.06, and a luminosity of 115 L☉.
What is another name for Gamma Andromedae?
Almach
What are the characteristics of Gamma Andromedae?
It is an orange-hued bright giant star of type K3 with an overall magnitude of 2.14. It is a multiple star with a yellow primary of magnitude 2.3 and a blue-green secondary of magnitude 5.0, separated by 9.7 arcseconds.
It is 358 light-years away.
What are the characteristics of Delta Andromedae?
It is an orange-hued giant star of type K3 orange giant of magnitude 3.3.
It is 105 light-years from Earth.