The Dolidze 27 and Alessi 10 Open Star Clusters

Details The Dolidze 27 and Alessi 10 Open Star Clusters The Dolidze 27 and Alessi 10 Open Star Clusters

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916506m&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #165.06; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

1

Scientific paper

New information was obtained for the open star clusters Dolidze 27 (Dolidze, M.V. 1961, Astron. Cir., 223, 11) and Alessi 10 (Alessi B. S., Moitinho A., Dias W.S. 2003, A&A, 410, 565). Two 20-minute exposure objective prism plates were selected from the collection of Michigan Blue Sky Objective Prism Plates in the North American Astronomical Photographic Plate Center located at the Pisgah Astronomical Research Institute. The plates were used to determine the spectral types for the stars in the two clusters. Alessi 10 consists primarily of late B and early A type stars, whereas Dolidze 27 has primarily K-type stars. Magnitudes of all stars in approximately 45 arcminute diameter areas centered on the clusters were measured from B and V images. The images were taken in July 2006 using the 40 cm Panchromatic Robotic Optical Monitoring and Polarimetry Telescopes (PROMPT; Reichart et al. 2005, Il Nuovo Cimento C, vol. 28, Issue 4, p.767). Color magnitude diagrams (CMD) from the B and V magnitudes were used to analyze the membership of the clusters and to determine the reddening, distanced modulus, and distances to the probable members of the clusters. E(B-V) = 0.55 +/0.02 mag, the distance modulus is 9.0 mag +/0.1 mag, and distance is 290 +/100 pc for Dolidze 27. Alessi 10 is reddened by 0.22 +/0.01 mag, and has a distance modulus of 9.4 +/0.1 magnitudes, and a distance of 550 +/100 pc. Known proper motions from Hipparchos for the brighter stars in the regions were also used to determine cluster membership. The stars of Dolidze 27 had average proper motions of μα = -7.50 mas and μδ = -13.94 mas, and the stars of Alessi 10 had μα = 3.06 mas and μδ = -6.84 mas.

Affiliated with

Also associated with

No associations

Rating

The Dolidze 27 and Alessi 10 Open Star Clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Dolidze 27 and Alessi 10 Open Star Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Dolidze 27 and Alessi 10 Open Star Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1162632