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
Spectral type	B8III C ~ blue giant
U−B color index	? / ?
B−V color index	? / ?
Variable type	none / ?
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)	4.80 ± 1.32 mas
Distance	approx. 700 ly (approx. 210 pc)
Absolute magnitude (MV)	0.18
Details
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 giant blue star of magnitude 6.41 in the constellation of Orion. It is 679 light years from the solar system.

Observation

It is a star is very narrowly in the Southern 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 a magnitude equating to 6.4. It is not observable to the naked eye; to be able to see it a small pair of binoculars is sufficient, provided you have a dark sky at your disposal. The best period for the night-time observation of Orion is between late October and April. For both hemispheres the period is indicatively the same. Owing to the position of the star not far from the celestial equator (zodiac), not far south of it, is at the height of the opposite period of the year very close to the position of, or indeed obscured by the sun.  

Physical traits

The star is a blue giant burning with an absolute magnitude of -0.18 and its positive radial velocity denotes 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.

External links

• Simbad link
• Catalog of Components of Double and Multiple Stars VizieR entry