Alpha Persei Cluster
The Alpha Persei Cluster, also known as Melotte 20 or Collinder 39, is an open cluster of stars in the northern constellation of Perseus. To the naked eye, the cluster consists of several blue-hued spectral type B stars. The most luminous member is the ~2nd magnitude white-yellow supergiant Mirfak, also known as Alpha Persei. Bright members also include Delta, Sigma, Psi, 29, 30, 34, and 48 Persei. The Hipparcos satellite and infrared color-magnitude diagram fitting have been used to establish a distance to the cluster of ~560 light-years (172 pc). The distance established via the independent analyses agree, thereby making the cluster an important rung on the cosmic distance ladder. As seen from the Earth, the extinction of the cluster due to interstellar dust is around 0.30.
29 Persei30 Persei31 Persei34 PerseiAlpha PerseiAlpha Persei Moving ClusterAlpha Persei clusterAlpha Persei moving clusterCollinder 39Collinder catalogueComa Star ClusterDe systemate orbis cometici, deque admirandis coeli characteribusDelta PerseiEpsilon CassiopeiaeHD 21071HD 21278List of most luminous starsList of open clustersMel 20Melotte 186Melotte 20Melotte catalogueOpen clusterPerseus (constellation)Psi PerseiStellar associationStellar kinematicsSufi Observing Competition
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Alpha Persei Cluster
The Alpha Persei Cluster, also known as Melotte 20 or Collinder 39, is an open cluster of stars in the northern constellation of Perseus. To the naked eye, the cluster consists of several blue-hued spectral type B stars. The most luminous member is the ~2nd magnitude white-yellow supergiant Mirfak, also known as Alpha Persei. Bright members also include Delta, Sigma, Psi, 29, 30, 34, and 48 Persei. The Hipparcos satellite and infrared color-magnitude diagram fitting have been used to establish a distance to the cluster of ~560 light-years (172 pc). The distance established via the independent analyses agree, thereby making the cluster an important rung on the cosmic distance ladder. As seen from the Earth, the extinction of the cluster due to interstellar dust is around 0.30.
has abstract
L'Ammasso di Alfa Persei (noto ...... ella nostra regione galattica.
@it
L'amas d'Alpha Persei, égaleme ...... es de notre région galactique.
@fr
Melotte 20 (také Collinder 39, ...... ckého okolí sluneční soustavy.
@cs
Melotte 20, també anomenat cúm ...... ament de 50-70 milions d'anys.
@ca
The Alpha Persei Cluster, also ...... s a combined mass of ~6000 M☉.
@en
Скопление Альфа Персея, также ...... примерно 50-70 миллионов лет.
@ru
عنقود ألفا بيرسي هي مجرة تتبع ...... nni Battista Hodierna في 1654.
@ar
ペルセウス座α星団(ペルセウス座運動星団、Melotte 2 ...... られている 。構成星の平均金属量は太陽に近い値を示している。
@ja
英仙座α星團,也稱為梅洛特20(Melotte 20)或科林 ...... 一個很古老且巨大集團的遺骸,現在的總質量為~6000 M☉。
@zh
페르세우스자리 알파 성단(Alpha Persei Clu ...... 르파크, 페르세우스자리 베타, , , , , , 이다.
@ko
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appmag v
constellation
epoch
name
Alpha Persei Cluster
@en
names
Per OB3, Cr 39, Mel 20, OCl 392.0
@en
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L'Ammasso di Alfa Persei (noto ...... muovono insieme nello spazio.
@it
L'amas d'Alpha Persei, égaleme ...... placent ensemble dans l'espace
@fr
Melotte 20 (také Collinder 39, ...... a spolu se pohybují prostorem.
@cs
Melotte 20, també anomenat cúm ...... , Psi, 29, 30, 34 i 48 Persei.
@ca
The Alpha Persei Cluster, also ...... erstellar dust is around 0.30.
@en
Скопление Альфа Персея, также ...... примерно 50-70 миллионов лет.
@ru
عنقود ألفا بيرسي هي مجرة تتبع ...... nni Battista Hodierna في 1654.
@ar
ペルセウス座α星団(ペルセウス座運動星団、Melotte 2 ...... の兆候が認められる。これは銀河潮汐力によるものかもしれない。
@ja
英仙座α星團,也稱為梅洛特20(Melotte 20)或科林 ...... 相似。星團還顯示出有潮汐尾,成為它們可能起源於銀河系的證據。
@zh
페르세우스자리 알파 성단(Alpha Persei Clu ...... 르파크, 페르세우스자리 베타, , , , , , 이다.
@ko
label
Alpha Persei Cluster
@en
Amas d'Alpha Persei
@fr
Ammasso di Alfa Persei
@it
Melotte 20
@ca
Melotte 20
@cs
Melotte 20
@de
Скопление Альфа Персея
@ru
عنقود ألفا بيرسي
@ar
ペルセウス座アルファ星団
@ja
英仙座α星团
@zh