Data Bases ® Catalogs / Lists ® "Shajn's Plane" ® 1964SoSht..136...3B


Title: Spectra, Visual Magnitudes and Colour Indeces of 2816 Stars in Cassiopeiae
Authors: Brodskaya, E. S.; Grigorieva, N. B.
Abstract:

Spectral types, visual magnitudes and most of the colour indices were obtained for stars in an area of 45 square degrees with the center at a=0h30m; d=+62°00. The limiting magnitude of the catalogue is 12m.3. The dispersion of the spectrogrammes was 250 Å/mm at Hd. OaD Kodak plates in combination with OC12 filter were used for determination of the visual magnitudes (mv). The photographic magnitudes were obtained using Agfa-Astro plates.

As the standard the photoelectric magnitudes of the stars from NGC 129 [3] and those of some stars from Hiltner’s catalogue [4], located close to the center of the investigated region, were used. The stars from the latter catalogue, and some stars from the NGC 225 [5], 146, 103 and K14 clusters [6] with known B, V magnitudes have been used to derive the relationships mv - V and C—(B-V). From the plot of mv against V-magnitudes (for 72 stars) it has been found that our mv are practically the same as V-magnitudes. The measured colour indices C were reduced into (B-V) system as follows: B-V=0.73(±0.027)C+0.09(±0.018).

The visual magnitudes and the colour indices are presented in B, V system.

Keywords: Stars; Spectral classes; Visual magnitudes; Colour indeces
Publication: Soobshcheniia Gosudarstvennogo astronomicheskogo instituta im. P.K. Sternberga. - 1964. - V. 136. - P. 3-43.
Comments: Tab. 1. Ref. 7. Id.Map 8.
References: [3.] 1959ApJ...130...80A
[4.] 1956ApJS....2..389H
[5.] 1961PUSNO..17..343H
[6.] 1960AAHam...5..215H
Bib.Code: 1964SoSht..136...3B
Full-text: PDF (442 kB); GIF (330 kB) 
 1. 1953IzKry..10..104B Brodskaya, E. S. Iz. Kry., 10, 104, 1953.
 2. 1955IzKry..14....3B Brodskaya, E. S. Iz. Kry., 14, 3, 1955.
 3. 1959ApJ...130...80A Arp, H.; Sandage, A.; Stefens, S. ApJ, 130, 80, 1959.
 4. 1956ApJS....2..389H Hiltner, W. A.  Ap. J. Suppl., 2, N 24, 1956.
 5. 1961PUSNO..17..343H Hoag, A. A.; Johnson, A. L.; Iriarte, B.; Mitchell, R. I.; Hallam, K. L.; Sharpless, S.
                        "Publ. U. S. Naval Obs.", Sec. ser., 17, 7, 1961.
 6. 1960AAHam...5..215H Hardorp, J. "Abh. Hamburger Sternware", 5, 7, 1960.
 7. 1959LS....C01....0H Hardorp, J.; Rohlfs, K.; Slettebak, A.; Stock, J. "Luminous stars in the northern 
                        Milky Way", pt. I, II. Hamburg - Bergedorf, 1959-1960.
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