DR 21

Summary

DR 21 is a star-forming region^[1]. It draws 5 Wikipedia views per month (star_forming_region category, ranking #3 of 2).^[2]

Key Facts

• DR 21's image is recorded as Stars in the DR21 Region (crop).jpg^[3].
• DR 21's instance of is recorded as star-forming region^[4].
• DR 21's constellation is recorded as Cygnus^[5].
• DR 21's spectral class is recorded as O4.5^[6].
• DR 21's Commons category is recorded as DR 21^[7].
• DR 21's catalog code is recorded as RAFGL 2624^[8].
• DR 21's catalog code is recorded as [WWB83] G081.68+0.54^[9].
• DR 21's Freebase ID is recorded as /m/0j3h1sf^[10].
• DR 21's apparent magnitude is recorded as {'amount': '+6.81'}^[11].
• DR 21's mass is recorded as {'unit': 'Q180892', 'amount': '+1.11'}^[12].
• DR 21's distance from Earth is recorded as {'unit': 'Q12129', 'amount': '+33'}^[13].
• DR 21's SIMBAD ID is recorded as DR 21^[14].
• DR 21's right ascension is recorded as {'unit': 'Q28390', 'amount': '+309.75665'}^[15].
• DR 21's declination is recorded as {'unit': 'Q28390', 'amount': '+42.32719'}^[16].
• DR 21's epoch is recorded as J2000.0^[17].
• DR 21's Microsoft Academic ID is recorded as 2780592665^[18].
• DR 21's effective temperature is recorded as {'unit': 'Q11579', 'amount': '+6150'}^[19].
• DR 21's age estimated by a dating method is recorded as {'unit': 'Q524410', 'amount': '+1.9'}^[20].

Why It Matters

DR 21 draws 5 Wikipedia views per month (star_forming_region category, ranking #3 of 2).^[2] It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.^[21]