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Nieuwe nova in Vulpecula

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    Nieuwe nova in Vulpecula

    Zie onderstaand bericht.

    Deze nova moet wel vroeg in de avond waargenomen worden, want hij staat dan al vrij laag. (25 graden hoogte om 19.00 uur MET).
    De locatie is 10 boogminuten ten westen van de open sterrenhoop NGC 6827, wat hem niet zo moeilijk te vinden maakt.

    Groeten,
    Guus

    AAVSO Alert Notice 364

    NOVA VULPECULAE 2007 NO. 2 = V459 VUL
    December 26, 2007

    Event: Nova

    Discovered Independently By:
    - Hiroshi Kaneda, Sapporo, Japan (reported by S. Nakano, Sumoto, Japan)
    - Akihiko Tago, Japan (reported by Nakano)

    Discovery Magnitude:
    - Kaneda: CCD magnitude 8.7, through thin clouds and using a Nikon D40
    digital camera (+105-mm f/2.5 lens), 3 frames
    - Tago: CCD magnitude 8.3, using a Canon 20D digital camera (+ Pentax
    105-mm f/3.2 lens), 2 frames

    Discovery Date:
    - Kaneda: Dec. 25.35 UT
    - Tago: Dec. 26.38 UT

    Position:
    19:48:08.87 +21:15:26.8 (equinox 2000, USNO-B1.0 1112-0430634 from VSX)

    AAVSO Chart:
    A chart for V459 Vul is available via VSP (Variable Star Plotter) on the
    AAVSO website. Go to:
    http://www.aavso.org/observing/charts/vsp/
    and enter the name V459 VUL. A sequence will be available soon, probably
    tomorrow.

    Report Object to the AAVSO as: V459 VUL (Designation 1943+21)

    Observations Reported to the AAVSO:
    Dec. 25.357 UT, 8.2 CCD, Kaneda (real brightening uncertain due to clouds
    in discovery images);
    26.342, 7.1 CCD, K. Itagaki, Yamagata, Japan, confirming observation;
    26.355, 7.7 CCD, Kaneda;
    26.38, 7.8 CCD, Nakano (measurement of jpeg image by Tago);

    Spectra: Spectroscopy by several Japanese observers indicate that the
    object is a classical nova, probably pre-maximum, and may be considerably
    reddened.

    Notes:
    a. All information in this Alert Notice is from Central Bureau for
    Astronomical Telegrams CBET 1181, Daniel W. E. Green, editor, unless
    otherwise noted.

    b. See AAVSO Special Notice #85 (A. Henden) for initial AAVSO announcement
    of this object and for comments about observability.

    c. Nakano reports nothing visible within 20" of this position on the
    Digitized Sky Survey, and nothing visible at this position on Kaneda's
    patrol frames from October 2 through December 8 (limiting mag 10-11).

    d. Kaneda and K. Kadota, Ageo, Japan, note that a USNO-B1.0-catalogue
    star [USNO-B1.0 1112-0430634] has position end figures 08.871s, 26.81" and
    magnitude ~20.

    e. N. N. Samus and E. Kazarovets, Institute of Astronomy, Moscow, write
    that N Vul 2007 No. 2 has been given the name V459 Vul.


    Congratulations to Hiroshi Kaneda and Akihiko Tago on their independent
    discoveries!

    Many thanks for your valuable astronomical contributions and your efforts.

    Good observing!

    Elizabeth Waagen
    Senior Technical Assistant


    #2
    hoi

    gisteravond, nog voordat een front wolken eraan kwam, heb ik de nieuwe nova snel kunnen vinden :P . Helder is hij zeker nog, want ik schatte 'm op 7,6. Gemakkelijk 's avonds te vinden onder de Zwaan die nog hoog genoeg staat. Zal nog mooi kunnen gevolgd worden...

    groetjes

    david


    positie van de nova V459 Vul:

    RA: 19 h 48 m 08.87 s
    Dec.: +21 d 15 m 26.8 s
    Is the sun more useful than the moon? Nasreddin: the moon, we need light more at night.

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