Sagittarius Dwarf Irregular Galaxy (SagDIG)

RA:

19 : 30.1

Dec:

-17 : 42

Type:

IB(s)m V

RV:

- 79.5 km/s

Distance:

4200 kly :

Apparent Dimension:

2.9 x 2.1

Diameter:

Brightness:

15.5 mag vis :

Abs. Mag:

Mass:

The Sagittarius Dwarf Irregular Galaxy, SagDIG was discovered by Cesarsky et.al. (1977) on a photographic plate obtained for the ESO (B) Atlas on June 13, 1977 with the ESO 1m Schmidt telescope (a 60 minutes exposure on IIa-O emulsion with GG 385 filter).

Our distance estimate of 4.2 million light-years is based on a determination by Lee and Kim (1999), and adjusted to our scale.

Our image was obtained by Martin Germano.

References:

• Cesarsky, D. A.; Lequeux, J.; Laustsen, S.; Schuster, H.-E.; West, R. M., 1977. Two new faint stellar systems discovered on ESO Schmidt plates. Astronomy and Astrophysics, vol. 61, no. 4, Nov. 1977, pp. L31-L33 [ADS: 1977A&A....61L..31C]. Also includes the announce of the Eridanus Globular Cluster.
• M.G. Lee and E. Kim, 1999. Preprint astro-ph/9910481

Last Modification: July 2, 2002