1994A&AS..106..573C

Query : 1994A&AS..106..573C

1994A&AS..106..573C - Astron. Astrophys., Suppl. Ser., 106, 573-579 (1994/September-0)

Deep CCD BV photometry of the poorly studied open cluster NGC 4815.

CARRARO G. and ORTOLANI S.

Abstract (from CDS):

We report BV Johnson CCD photometry of 2498 stars in the region of the poorly studied open cluster NGC 4815. This object appears in the Janes (1988) list of possible old open clusters. NGC 4815 lies in the galactic plane, in a region of strong absorption. The color magnitude diagram (CMD) we derive shows that NGC 4815 has about the Hyades age (5x108yr) and a probable lower than solar metal abundance. The color excess EB–V and the distance modulus (m-M) turn out to be 0.70 and 14.10, respectively. Accordingly a distance of 2.5 Kpc from the Sun is derived. The luminosity function (LF) we obtain for the main sequence (MS) stars is consistent with a Salpeter (x=1.55) initial mass function (IMF).

Abstract Copyright: ∼

Journal keyword(s): open clusters: individual: NGC 4815 - HR diagram - luminosity function

VizieR on-line data: <Available at CDS (J/A+AS/106/573): table2>

Nomenclature: Cl* NGC 4815 CO NNNN N=2498

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 4815 OpC 12 58 00.8 -64 57 36   9.61 8.6     ~ 110 0

Query : 1994A&AS..106..573C

Basic data :
NGC 4815 -- Open Cluster
Other object types: otypes_help 		OpC (2013A&A,OCl,...), Cl* (2020A&A,C,...)
ICRS coord. (ep=J2000) : 		12 58 00.8 -64 57 36 (Optical) [ ] E 2023A&A...674A..37G
FK4 coord. (ep=B1950 eq=1950) : 		12 54 52.4 -64 41 24 [ ]
Gal coord. (ep=J2000) : 		303.6281 -02.0971 [ ]
Proper motions mas/yr : 		-5.754 -0.964 [0.005 0.005 90] C 2020A&A...633A..99C
Radial velocity / Redshift / cz : 		V(km/s) -29.53 [0.21] / z(spectroscopic) -0.000098 [0.000001] / cz -29.53 [0.21]
   (Opt) A 2019A&A...629A..62C
Parallaxes (mas): 		0.261 [0.003] C 2020A&A...633A..99C
Angular size (arcmin): 		6.7 6.7 0 (Opt) D 2020A&A...633A..99C
Fluxes (2) :
B 9.61 [~] E ~
V 8.6 [~] E ~
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 780 		Display criteria :

Identifiers (6) :
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NGC 4815 Cl VDBH 142 [HXW2022] OC-0734
C 1254-646 OCl 893 [KPS2012] MWSC 2075

References (110 between 1850 and 2026) (Total 110)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 7    Distance : 5    Fe/H : 7    Plx : 7    PM : 9   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : NGC 4815

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NGC 4815

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