Standard Star

The 21 Crt

BS 4468

  • General Info.

  • Finder chart

  • Text data file

  • Other Stars
  • HD

    100889

    SAO

    138296

    Mag.

    4.70

    Spc.

    B9.5Vn

    RA

    11 36 40.9

    Dec

    -09 48 08

    Blue Fast Rotator



    Wavelength (Å)

    Flux (photons/cm² /Å /s)

    3200 10.9
    3225 11.0
    3250 11.0
    3275 11.1
    3300 11.1
    3325 10.9
    3350 10.8
    3375 10.7
    3400 10.6
    3425 10.5
    3450 10.5
    3475 10.5
    3500 10.5
    3525 10.4
    3550 10.5
    3575 10.6
    3600 10.6
    3625 10.6
    3650 11.0
    3675 11.4
    3700 12.5
    3725 13.7
    3750 15.7
    3775 17.4
    3800 19.0
    3825 20.4
    3850 21.9
    3875 23.2
    3900 24.8
    3925 26.4
    3950 23.2
    3975 19.9
    4000 23.4
    4025 26.9
    4050 24.9
    4075 23.0
    4100 22.8
    4125 22.5
    4150 24.2
    4175 25.8
    4200 25.4
    4225 25.1
    4250 24.7
    4275 24.2
    4300 21.5
    4325 18.6
    4350 20.1
    4375 21.6
    4400 21.3
    4425 21.7
    4450 21.3
    4475 20.7
    4500 20.3
    4525 19.9
    4550 19.8
    4575 19.6
    4600 19.5
    4625 19.5
    4650 19.5
    4675 19.4
    4700 19.3
    4725 19.0
    4750 18.9
    4775 18.7
    4800 17.9
    4825 17.1
    4850 15.7
    4875 14.2
    4900 15.7
    4925 17.1
    4950 16.9
    4975 16.7
    5000 16.4
    5025 16.2
    5050 16.1
    5075 16.1
    5100 15.9
    5125 15.6
    5150 15.5
    5175 15.4
    5200 15.1
    5225 14.9
    5250 14.7
    5275 14.5
    5300 14.4
    5325 14.3
    5350 14.2
    5375 14.2
    5400 14.0
    5425 13.8
    5450 13.8
    5475 13.7
    5500 13.6
    5525 13.5
    5550 13.4
    5575 13.3
    5600 13.1
    5625 12.9
    5650 12.9
    5675 12.8
    5700 12.6
    5725 12.5
    5750 12.4
    5775 12.4
    5800 12.2
    5825 12.1
    5850 12.0
    5875 12.0
    5900 11.8
    5925 11.6
    5950 11.6
    5975 11.5
    6000 11.3
    6025 11.1
    6050 10.9
    6075 10.8
    6100 10.6
    6125 10.4
    6150 10.3
    6175 10.2
    6200 10.1
    6225 9.98
    6250 9.88
    6275 9.80
    6300 9.73
    6325 9.64
    6350 9.56
    6375 9.49
    6400 9.42
    6425 9.33
    6450 9.30
    6475 9.25
    6500 9.03
    6525 8.88
    6550 8.17
    6575 7.46
    6600 8.10
    6625 8.79
    6650 8.84
    6675 8.88
    6700 8.81
    6725 8.74
    6750 8.67
    6775 8.62
    6800 8.56
    6825 8.47
    6850 8.44
    6875 8.40
    6900 8.31
    6925 8.23
    6950 8.14
    6975 8.08
    7000 7.98
    7025 7.90
    7050 7.85
    7075 7.82
    7100 7.82
    7125 7.79
    7150 7.73
    7175 7.60
    7200 7.48
    7225 7.44
    7250 7.41
    7275 7.37
    7300 7.28
    7325 7.20
    7350 7.15
    7375 6.80
    7400 6.71
    7425 6.61
    7450 6.60
    7475 6.60
    7500 6.51
    7525 6.40
    7550 6.36
    7575 6.18
    7600 6.19
    7625 6.18
    7650 6.07
    7675 5.95
    7700 5.84
    7725 5.72
    7750 5.74
    7775 5.76
    7800 5.66
    7825 5.56
    7850 5.50
    7875 5.43
    7900 5.37
    7925 5.30
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