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ALFOSC spectroscopic flux-standard stars

The flux-standards below are all in a dedicated TCS catalogue:
  • on the TCS user-interface type:     read FS.cat

    The exposure times in the table are purely indicative, and will depend on the grism and slit that are used.

    name TCS catalog entryspectral typeexp time
    HD 19445 SP0305+261 03:05:28.6 26:09:06 Mean 1950 -0.010 -0.830 8.0sdF (red) 5
    He 3 SP0644+375 06:44:14.8 37:35:03 Mean 1950 -0.010 -0.910 12.1DA (blue) 150
    HD 84937 SP0946+139 09:46:12.0 13:59:17 Mean 1950 +0.027 -0.790 8.3sdF (red) 6
    Feige 34 SP1036+433 10:36:41.0 43:21:49 Mean 1950 +0.000 +0.000 11.3sdO (blue) 90
    HD 93521 SP1045+378 10:48:23.5 37:34:13 Mean 2000 +0.000 +0.010 7.0O9Vp (blue) 2
    BD+26 2606SP1446+259 14:46:50.2 25:54:53 Mean 1950 +0.000 -0.350 9.7sdF (red) 25
    BD+33 2642SP1550+330 15:51:59.9 32:56:53 Mean 2000 10.7B2IVp (blue)60
    Wolf 1346SP2032+248 20:32:14.0 24:53:57 Mean 1950 -0.030 -0.550 11.6DA (blue) 100
    BD+17 4708SP2209+178 22:09:05.8 17:50:42 Mean 1950 +0.036 +0.050 9.4sdF (red) 15
    Feige 110 SP2317-054 23:19:58.4 -05:09:57 Mean 2000 11.9DOp (blue) 150

    Click on the objects, or check the ING pages for more information on these flux-standard stars, such as finding charts.
    Note that the TCS catalog holding the complete ING flux-standard list is called FS_ING.cat .


    The visibility plot of today:

     

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    Back to top Last modified: 09-Sep-2010