HD 34880

HD 34880
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Orion
Right ascension	05h 20m 26,4068s
Declination	−05° 22′ 03,102″
Apparent magnitude (V)	+6.41
Characteristics
Evolutionary stage	Blue giant
Spectral type	B8III
Astrometry
Radial velocity (Rv)	22.9 ± 20 km/s km/s
Proper motion (μ)	RA: -4.11 ± 1.27 mas/yr ; Dec.: -4.72 ± 0.84 mas/yr
Parallax (π)	0.7052 ± 0.3928 mas
Distance	approx. 5,000 ly ; (approx. 1,400 pc)
Absolute magnitude (MV)	-0.18
Other designations
	HIP 24925, CSI -05 1225 1, HR 1759, UBV 5086, ADS 3926 A, GC 6547, IDS 05155-0528 A, UBV M 10857, ALS 16416, GCRV 56072, PPM 187964, uvby98 100034880 AB, BD -05 1225, SAO 132004, YZ 95 1507, CCDM J05204-0522A, GSC 04760-01404, CEL 632, HD 34880, TD1 4439, CSI -05 1225 3, HIC 24925, TYC 4760-1404-1
Database references
SIMBAD	data

HD 34880 is a blue giant star of magnitude 6.41 in the constellation of Orion. It is 679 light years from the solar system.

Observation

This star is very narrowly in the southern celestial hemisphere; this means that it can be observed from all the inhabited regions of the Earth without any difficulty and that it is invisible only far beyond the Arctic polar circle. It appears near or below the horizon, depending on season as circumpolar in innermost areas of the Antarctic continent. Being of magnitude 6.4, it is observable with the naked eye only in ideal conditions; it is easy to observe with a small pair of binoculars.

The best period for the night-time observation of Orion in either hemisphere is between late October and April. Owing to the position of the star close to the celestial equator (zodiac), it is obscured by the sun or its glare at other times of the year.

Physical traits

The star is a blue giant with an absolute magnitude of -0.18 and it has a positive radial velocity indicating that the star is moving away from the solar system.

Multiple star

HD 34880 is a multiple system: made up of 3 components. The main component A is a star appearing with magnitude 6.41. The B component has magnitude 11.0, separated by 4.4 arc seconds from A at position angle 285 degrees (from north). Component C is of magnitude 9.1, separated by 0.5 arc seconds from A. Its position angle is about 196 degrees.

References

^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

External links

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[dr2-1] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

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