NGC 6744
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NGC 6744 (also known as Caldwell 101 or the Pavo Galaxy[1]) is an intermediate spiral galaxy in the constellation Pavo (Peacock). Its velocity with respect to the cosmic microwave background is 802 ± 3Script error: No such module "String".km/s, which corresponds to a Hubble distance of Script error: No such module "convert"..[2] However, 21 non redshift measurements give a distance of Script error: No such module "convert"..[3] It was discovered on 30 June 1826 by Scottish astronomer James Dunlop, observing from Parramatta, Australia.[4]
One of the largest spiral galaxies in the local universe, NGC 6744 is considered a Milky Way mimic in the immediate vicinity, displaying remarkable star formation, flocculent (fluffy) arms, and an elongated core.[5][6] It has at least one distorted companion galaxy (NGC 6744A) superficially similar to one of the Magellanic Clouds.[7]
NGCScript error: No such module "String".6744 is a LINER galaxy, i.e., its nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[6] The galaxy has an active galactic nucleus (AGN) of low luminosity.[6]
NGC 6744 lies within the Virgo Supercluster.[8][9]
Supernovae
Two supernovae have been observed in NGC 6744:
- R. Martin and Berto Monard discovered SN 2005at (type Ic, mag. 16) on 15 March 2005.[10][11]
- BlackGEM discovered another astronomical transient, designated SN 2024vjm, on 13 September 2024.[12] After initial Spectral analysis, the star was classified as a peculiar nova, but further observations showed the object to be a faint typeScript error: No such module "String".Iax supernova, likely the closest known of this type.[13][14][15]
Gallery
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EuclidTemplate:'s view of spiral galaxy NGC 6744
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The nucleus of NGC 6744 imaged by the Hubble Space Telescope
See also
- List of NGC objects (6001–7000)
- NGC 2336 – another spiral galaxy of similar size and shape
- NGC 1232
- SPT0418-47 – a spiral galaxy of similar size and shape when the universe was 1.4 billion years old
- UGC 12158
- UGC 6093
- Milky Way
References
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External links
- NGC 6744 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- NGC 6744, a Milky Way-like spiral galaxy
- NGC 6744 (Pav) Template:Webarchive
- June 4, 2010 – A Sibling of the Milky Way (Wise image of NGC 6744)
- A spiral galaxy that resembles our Milky Way (1 June 2011)
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- Template:APOD
Template:NGC objects:6500-6999 Template:Caldwell catalogue Template:Pavo (constellation) Template:Catalogs
- Pages with script errors
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- Virgo Supercluster
- Intermediate spiral galaxies
- Pavo (constellation)
- NGC objects
- Principal Galaxies Catalogue objects
- Caldwell objects
- Astronomical objects discovered in 1826
- IRAS catalogue objects
- Discoveries by James Dunlop
- ESO objects