HD 34880: Difference between revisions
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{{Short description|Star in the constellation Orion}} |
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{{more footnotes|date=June 2018}} |
{{more footnotes|date=June 2018}} |
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{{Notability|ASTRO|date=October 2021}} |
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| Simbad = HD+ |
| Simbad = HD+34880 |
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'''HD 34880''' is a |
'''HD 34880''' is a [[blue giant]] star of magnitude 6.41 in the constellation of [[Orion (constellation)|Orion]]. It is 679 light years from the solar system. |
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== Observation == |
== Observation == |
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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 [[apparent magnitude|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]]. |
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The best period for the night-time observation of Orion is between late October and April |
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. |
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== Physical traits == |
== Physical traits == |
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The star is a [[ |
The star is a blue [[giant star|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. |
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== Multiple star == |
== Multiple star == |
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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. |
HD 34880 is a [[multiple star|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. |
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==References== |
==References== |
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{{reflist|refs= |
{{reflist|refs= |
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<ref name=dr2>{{cite DR2}}</ref> |
<ref name=dr2>{{cite DR2|3210022964638861824}}</ref> |
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{{Stars of Orion}} |
{{Stars of Orion}} |
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{{DEFAULTSORT:HD 34880}} |
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[[Category:Pages with citations having bare URLs]] |
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[[Category:B-type bright giants]] |
[[Category:B-type bright giants]] |
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[[Category:Henry Draper Catalogue objects|034880]] |
[[Category:Henry Draper Catalogue objects|034880]] |
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[[Category:Hipparcos objects|024925]] |
[[Category:Hipparcos objects|024925]] |
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[[Category: |
[[Category:Bright Star Catalogue objects|1759]] |
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[[Category:Durchmusterung objects]] |
[[Category:Durchmusterung objects]] |
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[[Category:Orion (constellation)]] |
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Latest revision as of 05:59, 20 November 2022
![]() | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (June 2018) |
![]() | The topic of this article may not meet Wikipedia's notability guideline for astronomical objects. (October 2021) |
Observation data Epoch J2000.0 Equinox J2000.0 | |
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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[1] |
Distance | approx. 5,000 ly (approx. 1,400 pc) |
Absolute magnitude (MV) | -0.18 |
Other designations | |
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[edit]
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[edit]
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[edit]
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[edit]
- ^ 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[edit]