Sculptor Dwarf Irregular Galaxy

Short description: Irregular galaxy in the constellation Sculptor

Sculptor Dwarf Irregular

Sculptor Dwarf Irregular Galaxy close up by Hubble Space Telescope.

Observation data (J2000 epoch)
Constellation| Sculptor
Right ascension|  00h 08m 13.36s[1]
Declination| −34° 34′ 42.0″[1]
Redshift| 221 ± 6 km/s[2]
Distance| 10.44 ± 0.33 Mly (3.2 ± 0.1 Mpc)[1]
Apparent magnitude (V)| 15.5[2]
Absolute magnitude (V)| −11.87[1]
Characteristics
Type| dIrr[1]
Apparent size (V)| 1.1′ × 0.9′[2]
Half-light radius (apparent)| 29″.4 ± 1″.6[1]
Other designations
SDIG,[2] PGC 621,[2] ESO 349-031[2]

The Sculptor Dwarf Irregular Galaxy (SDIG) is an irregular galaxy in the constellation Sculptor. It is a member of the NGC 7793 subgroup of the Sculptor Group.[1] The galaxy was discovered in 1976.[citation needed]

## Nearby galaxies and galaxy group information

The Sculptor Dwarf Irregular Galaxy and the dwarf galaxy UGCA 442 are both companions of the spiral galaxy NGC 7793.[3] These galaxies all lie within the Sculptor Group, a weakly bound, filament-like group of galaxies located near the Local Group.[3]

## See also

* Sculptor Dwarf Galaxy – a dwarf spheroidal or elliptical galaxy, also in Sculptor, but significantly closer; a satellite of the Milky Way.

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Lianou, S.; Cole, A. A. (2013). "The star formation history of the Sculptor dwarf irregular galaxy". Astronomy & Astrophysics 549: A47. doi:10.1051/0004-6361/201220193. Bibcode: 2013A&A...549A..47L.
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "NASA/IPAC Extragalactic Database". Results for Sculptor Dwarf Irregular. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Sculptor+Dwarf+Irregular#ObjNo1. Retrieved 2007-03-15.
3. ↑ 3.0 3.1 I. D. Karachentsev; E. K. Grebel; M. E. Sharina; A. E. Dolphin et al. (2003). "Distances to nearby galaxies in Sculptor". Astronomy and Astrophysics 404 (1): 93–111. doi:10.1051/0004-6361:20030170. Bibcode: 2003A&A...404...93K.

## External links

*   * The Sculptor Dwarf Irregular Galaxy on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Coordinates:  00h 08m 13.3s, −34° 34′ 42″

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Constellation of Sculptor

* List of stars in Sculptor
* Sculptor in Chinese astronomy

Stars|

| Bayer|

* α
* β
* γ
* δ
* ε
* ζ
* η
* θ
* ι
* κ1
* κ2
* λ1
* λ2
* μ
* ξ
* π
* σ
* τ

|

Variable|

* R
* S
* Z
* RT
* SY
* VY
* VZ
* AI
* AL
* AP
* AU
* AV
* AW
* BB
* BU
* BW
* BX

HR|

* 13
* 42
* 43
* 54
* 57
* 102
* 138
* 268
* 300
* 400
* 436
* 441
* 445
* 453
* 471
* 494
* 498
* 8802
* 8813
* 8871
* 8883
* 8914
* 8999
* 9026
* 9044
* 9058
* 9102

HD|

* 3074
* 3605
* 4113
* 4208
* 6403
* 9151
* 9578
* 219580
* 219823

Other|

* CD -38 245
* GD 659
* GJ 2005
* Gliese 1
* HE 2359-2844
* WASP-8
* WASP-45
* WD 0137−349

| Exoplanets|

* HD 4113 b
* HD 4208 b
* HD 9578 b
* WASP-8 b

|

| Star clusters|

* Blanco 1
* NGC 288

|

Galaxies|

| NGC|

* 7
* 10
* 24
* 55
* 101
* 115
* 131
* 134
* 148
* 150
* 174
* 254
* 264
* 289
* 300
* 314
* 334
* 365
* 378
* 409
* 415
* 418
* 423
* 424
* 427
* 438
* 439
* 441
* 461
* 491
* 526
* 527
* 612
* 613
* 630
* 7793
* 7812

|

Other|

* A2744 YD4
* Abell 2744 Y1
* Cartwheel Galaxy
* Comet Galaxy
* ESO 540-030
* Haro 11
* Sculptor Galaxy
* Sculptor Dwarf Galaxy
* Sculptor Dwarf Irregular Galaxy

| Galaxy clusters|

* Abell 2667
* Abell 2744

|

| Astronomical events|

* SN 2009gj

|

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