DDO 169
In today's world, DDO 169 is a topic that generates great interest and debate in society. For years, DDO 169 has captured the attention of people of all ages, genders, social classes and nationalities, due to its relevance and complexity. As time goes on, DDO 169 continues to be a topical topic that raises conflicting opinions and awakens emotions in people. Whether due to its impact on everyday life, its historical relevance or its influence on the future, DDO 169 has become a point of common interest that motivates us to reflect and seek answers. In this article, we will explore the different aspects and perspectives related to DDO 169, with the aim of contributing to the understanding and analysis of this intriguing and significant topic.
| DDO 169 | |
|---|---|
 DDO 169 | |
| Observation data (J2000 epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 13h 15m 30.31s |
| Declination | +47° 29′ 56.2″ |
| Redshift | +260 km/s |
| Distance | 6.03 / 8.23 Mpc[1][2] (19.7 / 26.8 million ly) |
| Apparent magnitude (V) | 14.61 |
| Characteristics | |
| Type | IAm |
| Apparent size (V) | 2.7′ × 0.9' |
| Other designations | |
| UGC 8331, PGC 46127 | |
DDO 169 (also known as UGC 8331 or PGC 46127) is an irregular galaxy located in the constellation Canes Venatici. It is a member of the M51 Group of galaxies and measures approximately 5 × 1.5 kiloparsecs (16,000 × 5,000 lightyears).[1] The galaxy's large-scale structure is very unorganized and it has two clusters of stars in its outer portions in addition to the cluster in the center.[3] These clusters make it practically impossible to determine the galaxy's rotation curve and contributes to a large variation in distance figures that are derived with different methods.[1][3] The exact distance to the galaxy is not known, although a 1998 paper estimated the distance as 8.23 megaparsecs.[2]
References
- ^ a b c "NED results for UGC 8331". NED via University of California. Retrieved 2009-03-08.
- ^ a b I.D. Karachentsev; I.O. Drovdozsky (July 1998). "Distances to five resolved galaxies in the Canes Venatici cloud" (PDF). Astronomy and Astrophysics Supplement Series. Retrieved 2009-03-08.[permanent dead link]
- ^ a b R.A. Swaters; R. Sancisi; T.S. van Albada; J.M. van der Hulst (2009-01-27). "The rotation curves shapes of late-type dwarf galaxies". Astronomy and Astrophysics. 493 (3): 871–892. arXiv:0901.4222. Bibcode:2009A&A...493..871S. doi:10.1051/0004-6361:200810516. S2CID 14143255.
