Messier 7

Summary

Messier 7 is an open cluster^[1]. It ranks in the top 7% of open_cluster entities by monthly Wikipedia readership (66 views/month).^[2]

Key Facts

• Messier 7 is credited with the discovery of Ptolemy^[3].
• Messier 7's image is recorded as Open-cluster-Messier-7.jpeg^[4].
• Messier 7's image is recorded as The star cluster Messier 7.jpg^[5].
• Messier 7's instance of is recorded as open cluster^[6].
• Messier 7's constellation is recorded as Scorpius^[7].
• Messier 7's spectral class is recorded as I^[8].
• Messier 7's part of is recorded as Orion Arm^[9].
• Messier 7's Commons category is recorded as Messier 7^[10].
• Messier 7's catalog code is recorded as M 7^[11].
• Messier 7's catalog code is recorded as C 1750-348^[12].
• Messier 7's catalog code is recorded as NGC 6475^[13].
• Messier 7's catalog code is recorded as OCl 1028.0^[14].
• Messier 7's catalog code is recorded as Collinder 354^[15].
• Messier 7's catalog code is recorded as Melotte 183^[16].
• Messier 7's catalog code is recorded as [KPS2012] MWSC 2739^[17].
• Messier 7's time of discovery or invention is recorded as +0130-00-00T00:00:00Z^[18].
• Messier 7's Freebase ID is recorded as /m/03rty2^[19].
• Messier 7's topic's main category is recorded as Category:Messier 7^[20].
• Messier 7's Commons gallery is recorded as Messier 7^[21].
• Messier 7's apparent magnitude is recorded as {'amount': '+3.3'}^[22].
• Messier 7's apparent magnitude is recorded as {'amount': '+3.45'}^[23].
• Messier 7's different from is recorded as M7^[24].
• Messier 7's radius is recorded as {'unit': 'Q531', 'amount': '+9'}^[25].
• Messier 7's parallax is recorded as {'unit': 'Q21500224', 'amount': '+3.5704'}^[26].
• Messier 7's radial velocity is recorded as {'unit': 'Q3674704', 'amount': '-14.84'}^[27].

Body

Geography

Messier 7's part of is recorded as Orion Arm^[9].

Designation and Status

Messier 7's instance of is recorded as open cluster^[6].

History and Context

Catalog codes include M 7^[11], C 1750-348^[12], NGC 6475^[13], OCl 1028.0^[14], Collinder 354^[15], and Melotte 183^[16].

Why It Matters

Messier 7 ranks in the top 7% of open_cluster entities by monthly Wikipedia readership (66 views/month).^[2] It has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.^[28] It is known by 31 alternative names across languages and contexts.^[29]