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  • 1975-1979  (2)
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Material
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Photoelectric photometry of the open cluster Tr-1 (1977)
    Springer
    Astrophysics and space science 48 (1977), S. 225-230 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The H-R diagram of the open cluster Tr-1 based on Oja-membership andU, B, V photoelectric photometry is presented. The colour excessE(B-V) is 0 . m 52. The distance modulus to the cluster and its age are, respectively, estimated at 11 . m 6 and 2.6×107 yr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00643053
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A study of the young open cluster NGC 6611 (1979)
    Springer
    Astrophysics and space science 66 (1979), S. 3-12 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Photoelectric magnitudes and colours in theUBV system have been determined for 50 stars in NGC 6611. The reddening value varies across the cluster fromE(B-V)=0m58 toE(B-V)=1m21. The distance modulus to the cluster is estimated at 12m5±0m2. It is found that cluster stars are not of the same age. The cluster luminosity function is compared with the general and initial luminosity functions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00648356
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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