7 Andromedae: Difference between revisions
Appearance
Content deleted Content added
m it |
No edit summary |
||
Line 41: | Line 41: | ||
'''7 Andromedae''' is a [[star]] in the [[constellation]] [[Andromeda (constellation)|Andromeda]]. Its [[apparent magnitude]] is 4.53. |
'''7 Andromedae''' is a [[star]] in the [[constellation]] [[Andromeda (constellation)|Andromeda]]. Its [[apparent magnitude]] is 4.53. |
||
==References== |
==References== |
||
* [http://www.alcyone.de/cgi-bin/search.pl?object=HR8830 HR8830] |
* [http://www.alcyone.de/cgi-bin/search.pl?object=HR8830 HR8830] |
||
⚫ | |||
{{Stars of Andromeda}} |
{{Stars of Andromeda}} |
||
⚫ | |||
[[Category:Flamsteed objects|Andromedae, 7]] |
|||
⚫ | |||
[[Category:Andromeda constellation|07 Andromedae]] |
[[Category:Andromeda constellation|07 Andromedae]] |
||
[[Category:Unclassified stars]] |
[[Category:Unclassified stars]] |
||
⚫ | |||
[[ca:7 Andromedae]] |
[[ca:7 Andromedae]] |
Revision as of 07:44, 16 December 2009
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 23h 12m 33.0034s |
Declination | +49° 24' 22.346"' |
Apparent magnitude (V) | 4.54 |
Characteristics | |
Spectral type | F0V |
U−B color index | 0.04 |
B−V color index | 0.29 |
Variable type | None |
Astrometry | |
Radial velocity (Rv) | 12.5 km/s |
Proper motion (μ) | RA: 89.78 mas/yr Dec.: 95.57 mas/yr |
Parallax (π) | 40.82 ± 0.57 mas |
Distance | 80 ± 1 ly (24.5 ± 0.3 pc) |
Absolute magnitude (MV) | 4.819 |
Details | |
Mass | 1.7 M☉ |
Radius | 1.3 R☉ |
Luminosity | 6 L☉ |
Surface gravity (log g) | ? cgs |
Temperature | 6.000–7.500 K |
Metallicity | ? |
Rotation | ? |
Age | ? years |
Other designations | |
Database references | |
SIMBAD | data |
7 Andromedae is a star in the constellation Andromeda. Its apparent magnitude is 4.53.