38 Boötis
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Boötes
|
Right ascension | 14h 49m 18.67062s[1] |
Declination | +46° 06′ 58.3369″[1] |
Apparent magnitude (V) | 5.76[2] |
Characteristics | |
Evolutionary stage | subgiant[3] |
Spectral type | F6 IVs[4] |
B−V color index | 0.482±0.002[2] |
Absolute magnitude (MV) | 2.31[2] |
Details | |
Gyr | |
Database references | |
SIMBAD | data |
38 Boötis is a singleapparent visual magnitude of 5.76.[2] It is moving closer to the Earth with a heliocentric radial velocity of −4.5 km/s.[2]
This is a sharp-
Nomenclature
It has the traditional name Merga, occasionally spelled Marrha[10][11] or in full El Mara el Musalsela,[11] from the Arabic المرأة المسلسلة al-mar'ah al-musalsalah "the chained woman". Another occasional name was Falx Italica,[11] from the Latin falx ītalica "billhook". In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[12] to catalogue and standardize proper names for stars. The WGSN approved the name Merga for this star on 12 September 2016 and it is now so included in the List of IAU-approved Star Names.[9]
References
- ^ .
- ^ S2CID 119257644.
- ^ S2CID 1106754.
- ^ doi:10.1086/319956.
- ^ S2CID 62799777, A55.
- ^ ]
- ^ "38 Boo". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved May 12, 2019.
- S2CID 14878976.
- ^ a b Naming Stars, IAU.org, retrieved 16 December 2017.
- ISBN 9780521449212.
- ^ a b c Dolan, Christopher J, Merga, retrieved 2016-06-24.
- ^ IAU Working Group on Star Names (WGSN), International Astronomical Union, retrieved 22 May 2016.