| NGC 6769 | |
|---|---|
 NGC 6769 (right) with NGC 6770 (left) imaged by ESO'sVery Large Telescope | |
| Observation data (J2000epoch) | |
| Constellation | Pavo |
| Right ascension | 19h 18m 22.5975s[1] |
| Declination | −60° 30′ 03.208″[1] |
| Redshift | 0.012886±0.000127[1] |
| Heliocentric radial velocity | 3,863±38 km/s[1] |
| Distance | 183.2 ± 13.1 Mly (56.16 ± 4.01 Mpc)[1] |
| Group orcluster | IC 4845 group (LGG 427)[2][3] |
| Apparent magnitude (V) | 12.55[1] |
| Characteristics | |
| Type | SAB(r)b pec[1] |
| Size | ~384,500 ly (117.90 kpc) (estimated)[1] |
| Apparent size (V) | 2.3′ × 1.5′[1] |
| Other designations | |
| The Devil's Mask, ESO 141-IG 048,PGC 63042,VV 304a[1] | |
NGC 6769 is a peculiarspiral galaxy in theconstellation ofPavo. Its velocity with respect to thecosmic microwave background is3,807±38 km/s, which corresponds to aHubble distance of 183.2 ± 13.1 Mly (56.16 ± 4.01 Mpc).[1] It was discovered by British astronomerJohn Herschel on 11 August 1836.[4][5]
NGC 6769 along withNGC 6770 are listed asVV 304 in the catalog ofVorontsov-Vel'yaminov Interacting Galaxies.[6] Together withNGC 6771, the grouping of the 3 galaxies is sometimes called "The Devil's Mask."[5][7]
NGC 6769 is a member of the IC 4845galaxy group (also known asLGG 427), which contains 14 members, includingNGC 6739,NGC 6746,NGC 6770,NGC 6782,IC 4827,IC 4828,IC 4831,IC 4838,IC 4842,IC 4845,IC 4866, andESO 141-21.[2][3]
Twosupernovae have been observed in NGC 6769:
![NGC 6769, NGC 6770, and NGC 6771 ("The Devil's Mask") imaged by ESO's Very Large Telescope[7]](/mt/?noimg=&dark=on&url=http%3a%2f%2fen.wikipedia.org%2fwiki%2fFile%3aNGC_6769.jpg)
Media related toNGC 6769 at Wikimedia Commons
