Dolidze-Dzimselejsvili 1
From DeepSkyPedia
| Dolidze-Dzimselejsvili 1 >> DoDz 2 | |
|---|---|
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Please, help us find free binocular or telescope sketch of this object | |
| Position (epoch J2000) [1] | |
| Constellation | Aries |
| Position | Ra 02:47:30.0 Dec +17:16:10 |
| DSS images | |
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Appearance [1] | |
| Apparent mag. | |
| Size | 14' |
| Class | III 2 p |
| Stars | 12 stars |
| Other | |
| Other designations | DoDz 1, OCL 287, Lund 596 and C 0244+169[1] |
| Notes | |
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Dolidze-Dzimselejsvili 1 is an asterism[2] in Aries.
Contents |
[edit] How to find it
Startsee map:[3] with a double star Gamma Arietis. Then, go about 10°[Citation needed] east to 5.3-mag Pi Arietis. Pi is almost equaly distant from Gama Ari as is from Pleiades (to the ENE from Pi). From Pi, move about 30' WSW to DoDz 1see map:[1].
[edit] Appearance
The asterism is dominated by three 8.5- to 9-mag stars inside 9' area. Three more stars with magnitudes between 9.7 and 10.2 are in the center of this grouping. Most of the field stars are much dimmer, except maybe few stars to the west of the asterism.
Considering the magnitudes of the 3 brightest stars, and the size of this group, this asterism must be visible in any instrument that can show 9-mag stars, even at very low power (stars are more spread then the components of naked-eye double Epsilon Lyrae!).
Magnitue range od stars is 8.5 - 11.[4]
[edit] 8" telescopes and above
The size af a telescope doesn't play big role with this object. Telescopes in aperture range 8" to 12" will show compact and bright but poor grouping, cca 10' in diameter. Number of stars reported depends more on what stars observers consider to be members of a grouping than on visibility.[5][6][7][8][9][10]
[edit] Notes
A 15-mag galaxy MCG +03-08-011 is some 3' SEsee map:[11] from the easternmost of 3 brightest stars in the asterism.
There are no other reasonably bright DSO in 3° range. NGC 1036, a 13.3-mag galaxy, is some 3.5° to the NW.
[edit] References
- ↑ 1.0 1.1 1.2 1.3 Dolidze-Dzimselejsvili 1 map and page @ messier45.com
- ↑ List of removed clusters (Wilton S. Dias, UNIFEI)
- ↑ Hawaiian Astronomical Society: Aries -- Wide Area Map, More detailed map
- ↑ The Dolidze-Dzimselejsvili Open Clusters
- ↑
DoDz 1 (sketch and report) , Jere Kahanpää , Catadioptric , d=200mm , f=200mm , 80x , 14./15.12.1996 , Helsinki, Finland , LM: 5.5 , seeing: 2-3 - ↑
DoDz 1 (sketch and report) , Jaakko Saloranta , Newton Orion SkyQuest , d=203mm , f=203mm , cca 80x(?) , 14./15.10.2004 , Sotunki, Vantaa, Finland , LM: 6.0 , seeing: 1-2
- ↑ The Dolidze-Dzimselejsvili Open Clusters , Paul Markov , 10-inch SCT , 50x and 62x
- ↑ (IAAC) DoDz1 , Cliff Hedgepeth , Orion XT 12 Intelliscope , d=305mm , f=1500mm , 37.5x , Franklin, VA, USA , LM: 4.5 , seeing: 5/10
- ↑ deepskylog.be , Jan Vanautgaerden , Obsession 15" , d=381mm , f=1715mm , 132x , 01/10/2008 , Le Castellard , LM: 6.4 , seeing: good
- ↑ The Deep-Sky Observer, issue 138/2005 , d=20" , f=100" , 73x
- ↑ MCG +03-08-011 @ messier45.com
[edit] Links
