Nem semmi, észlelésre fel! A GX 13m-s, jó látvány lehet benne a 13,5-ös SN!

snt

2013/7/20, hadhazics@primposta.hu :
>
>
>
> AAVSO Alert Notice 487
>
>  Supernova 2013dy in NGC 7250 = PSN J22181760+4034096
>  July 19, 2013
>
>  Event: Supernova 2013dy in NGC 7250 (Lacerta) = PSN J22181760+4034096
>
>  Independent discovery by:
>   - Lick Observatory Supernova Search (LOSS), reported by C.
>  Casper, W. Zheng, W. Li, and A. V. Filippenko (University of
>  California at Berkeley) and S. B. Cenko (Goddard Space Flight
>  Center)
>   - Kuniaki Goto (Miyoshi-shi, Hiroshima Prefecture, Japan),
>  communicated by Shoichi Itoh (National Astronomical Observatory
>  of Japan)
>
>  Discovery Magnitude:
>   - LOSS: CCD magnitude 17.0, on unfiltered Katzman Automated
>  Imaging Telescope (KAIT) images
>   - Goto: about 16, using 35-cm Schmidt-Cassegrain telescope
>
>  Discovery date:
>   - LOSS: 2013 July 10.45 UT
>   - Goto: 2013 July 11.735 UT
>
>  Coordinates: R.A. = 22 18 17.60, Decl.= +40 34 09.6 (2000.0)
>  SN 2013dy is offset 2.1" west, 24.9" north from the nucleus of NGC
>  7250 (coordinates and offset from LOSS).
>
>  Spectra: SN 2013dy is a Type-Ia supernova discovered one to two
>  weeks before maximum, according to spectra by:
>   - D. D. Balam (Dominion Astrophysical Observatory, National
>  Research Council of Canada (NRCC)), M . L. Graham (Las Cumbres
>  Observatory Global Telescope, University of California at San
>  Diego), and E. Y. Hsiao (Las Campanas Observatory) obtained on
>  Jul 13.31 UT with the NRCC 1.82-m Plaskett Telescope;
>   - J.-J. Zhang (Yunnan Astronomical Observatory (YNAO)) and X.-F.
>  Wang (Tsinghua University) obtained on Jul 14.75 UT with the
>  2.4-m telescope (+YFOSC) at YNAO LiJiang Gaomeigu Station;
>   - W. Zheng (University of California, Berkeley), S. B. Cenko
>  (Goddard Space Flight Center, NASA), K. I. Clubb, O. D. Fox, P. L.
>  Kelley, and A. V. Filippenko (University of California, Berkeley),
>  and J. M. Silverman (University of Texas) obtained on Jul 11.7
>  with the 10-m Keck II telescope (+ DEIMOS spectrograph) at Keck
>  Observatory.
>
>  Observations reported to the AAVSO:
>  2013 Jul 8.45 UT, <18.5 U (unfiltered KAIT CCD photometry, via
>  CBET 3588);
>  10.086, 19.1 (F. Ciabattari, Borgo a Mozzano, Italy, 0.5-m
>  Newtonian telescope + FLI Proline 4710 camera, via CBET 3588);
>  10.7, 16.6 (A. Mantero, Bernezzo, Italy; 0.25-m f/4 reflector,
>  via CBET 3588);
>  11.909, 16.0 (G. Masi and F. Nocentini, remotely using 43-cm
>  robotic telescope, Virtual Telescope Project facility in Ceccano,
>  Italy, via CBET 3588);
>  11.994, 16.3 V (M. Martignoni, Magnago, Italy;0.25-m f/10 Schmidt-
>  Cassegrain reflector, via CBET 3588);
>  12.423, 15.7 (L. Elenin, Lyubertsy, Russia, and I. Molotov,
>  Moscow, Russia; remotely using 0.45-m f/2.8 telescope at ISON-NM
>  Observatory near Mayhill, NM, via CBET 3588);
>  14 .37, 14.5 U (KAIT, via CBET 3588);
>  15.96528, 14.5 (K. Wenzel, Grossostheim, Germany, visual);
>  16.19444, 14.4 (T. C. Hoffelder, Norway, ME, visual);
>  16.93750, 13.9 (Wenzel, visual);
>  18.91319, 13.5 (Wenzel, visual);
>
>  Charts: Charts for SN 2013dy may be created using the AAVSO
>  Variable Star Plotter (VSP) at http://www.aavso.org/vsp.
>
>  Submit observations: Please submit observations to the AAVSO
>  International Database using the name SN 2013dy.
>
>  Notes:
>  a. Announced on IAU CBAT Central Bureau Electronic Telegram 3588
>  (Daniel W. E. Green, ed.). Except for observations reported to the
>  AAVSO and Note e, all information in this Alert Notice comes from
>  CBET 3588.
>
>  b. SN 2013dy was designated PSN J22181760+4034096 when it was
>  posted on the CBAT TOCP webpage
>  (http://www.cbat.eps.harvard.edu/unconf/tocp.html). Note that
>  the offset was incorrectly posted on the TOCP page as 24.9" south.
>
>  c. Position end figures and additional observation details for all
>  observations reported here via CBET 3588 are available in CBET 3588.
>
>  d. SN 2013dy images:
>   - F. Ciabattari (Jul 10.086, 19.1), at
>  http://www.flickr.com/photos/snimages/9277396759/
>   - Andrea Mantero (Jul 10.7, 16.6), at
>  http://www.flickr.com/photos/andreagalaxy/9261869119/
>   - L. Elenin and I. Molotov (Jul 12.423, 15.7), at
>  http://spaceobs.org/images/TOCP/PSNJ22181760+4034096-20130712.png).
>
>  e. J. Ryan (Harvard-Smithsonian Center for Astrophysics) reports
>  in ATel #5216 (http://www.astronomerstelegram .org/?read=5216) that
>  he and colleagues will be taking HST UV spectra of SN 2103dy 10
>  times over the next month, beginning 2013 July 21 ~11:00 UT. He
>  requests observations at all wavelengths.
>
>  Congratulations to the LOSS team and to Kuniaki Goto on their
>  independent discoveries!
>
>
>  This AAVSO Alert Notice was prepared by Elizabeth O. Waagen.
>
>  -------------------------------------------
>  SUBMIT OBSERVATIONS TO THE AAVSO
>
>  Information on submitting observations to the AAVSO may be found at:
>
>  http://www.aavso.org/observing/submit/
>
>  ALERT NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION
>
>  An Alert Notice archive is available at the following URL:
>  http://www.aavso.org/publications/alerts/
>
>  Subscribing and Unsubscribing may be done at the following URL:
>  http://www.aavso.org/publications/email/
>
>