Bé-thâu Seng-hûn
Bé-thâu seng-hûn (Hàn-jī: 馬頭星雲), mā kiò-chò Barnard 33, sī La̍h-hō͘-chō ê chi̍t ê ám-seng-hûn. I tiám tī IC 434 lāi-té, koh sī La̍h-hō͘-chō hun-chú-hûn ho̍k-ha̍p-thé ê chi̍t pō͘-hūn.[2]
| Dark nebula | |
|---|---|
| diffuse | |
 The Horsehead Nebula | |
| Observation data: J2000.0 epoch | |
| Right ascension | 05h 40m 59.0s |
| Declination | −02° 27′ 30.0" |
| Distance | 1,375±54[1][note 1] ly (422±17[1] pc) |
| Apparent magnitude (V) | 6.8 |
| Apparent dimensions (V) | 8 × 6 arcmins |
| Constellation | Orion |
| Physical characteristics | |
| Radius | 3.5 ly |
| Designations | Barnard 33, LDN 1630, IC 434 |
Tôo-siōng
siu-kái-
Hubble Thài-khong Tiàu-kiàⁿ âng-gōa-sòaⁿ siòng-phìⁿ, 2013 nî hip--ê. -
Le̍k-sú-siōng tē-it tiuⁿ Bé-thâu Seng-hûn ê siòng-phìⁿ, William Henry Pickering tī 1888 nî hip--ê. -
Au-chiu Lâm-hong Thian-bûn-tâi 2002 nî hip--ê.
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Tsù-sik
siu-kái- ↑ Based on the parallax of 2MASS J05405172-0226489, a young stellar object embedded in the 'head' of the nebula.
Chham-khó chu-liāu
siu-kái- ↑ 1.0 1.1 Pang-bô͘:Cite DR2
- ↑ "Kā 恆星提掉 ê 馬頭星雲區". 逐工一幅天文圖 APOD Taigi. 2022-08-29. 2022-09-05 khòaⁿ--ê.
Gōa-pō͘ liân-kiat
siu-kái- The Horsehead Nebula @ The Electronic SkyArchived 2018-10-12 at the Wayback Machine.
- Hubble Observes the Horsehead NebulaArchived 2005-05-08 at the Wayback Machine.
- The discovery of early photographs of the Horsehead nebula, by Waldee and HazenArchived 2013-01-16 at the Wayback Machine.
- The Horsehead Nebula in the 19th Century, by Waldee
- Detection of new nebulae by photography, by Pickering
- Horsehead Nebula at ESA/Hubble
- The Horsehead Nebula at the Astro-Photography site of Mr. T. Yoshida.Archived 2009-02-02 at the Wayback Machine.
- The Horsehead-Nebula and neighboring structures in a classical viewArchived 2017-03-06 at the Wayback Machine.
- The Horsehead Nebula on interactive astro-photography survey at Wikisky.orgArchived 2009-02-03 at the Wayback Machine.
