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Nova in Scorpius - PNV J16521887-3754189

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發表於 2017-2-14 06:10:51 | 顯示全部樓層 |閱讀模式
[size=13.3333px]AAVSO Alert Notice 568

[size=13.3333px]February 13, 2017

[size=13.3333px]Nova in Scorpius - PNV J16521887-3754189


[size=13.3333px]Event: Nova in Scorpius

[size=13.3333px]Discovered by: Hideo Nishimura (Shizuoka-ken, Japan)

[size=13.3333px]Discovery magnitude: magnitude 11.7 (CCD, unfiltered)

[size=13.3333px]Discovery date: 2017 February 1.862 UT
[size=13.3333px]  
[size=13.3333px]Coordinates (2000.0): R.A. 16 52 18.87  Decl. -37 54 18.9 (from
[size=13.3333px]discovery and VSX)
[size=13.3333px]
[size=13.3333px]Spectra: Spectroscopy indicating that PNV J16521887-3754189 is an
[size=13.3333px]He/N nova was obtained 2017 February 12.3 UT by J. Strader (Michigan
[size=13.3333px]State Univ.) et al. (ATel #10071).

[size=13.3333px]Observing recommendations: Observations of all types (visual, CCD,
[size=13.3333px]DSLR, spectroscopy) and all bands as instrumentation permits are
[size=13.3333px]strongly encouraged as the nova evolves.

[size=13.3333px]Observations reported to the AAVSO:

[size=13.3333px]2017 Jan. 30.868, 12.5 unfiltered CCD (Nishimura, via TOCP page);
[size=13.3333px]Feb. 1.862, 11.7 CCD unfiltered (H. Nishimura, discovery);
[size=13.3333px]2.857, 12.1 (Nishimura, via TOCP page);
[size=13.3333px]6.836, 12.7 (Nishimura, via TOCP page);
[size=13.3333px]10.7018 UT, 14.73 B (S. Kiyota, Kamagaya, Japan, remotely with
[size=13.3333px]0.50-m f/4.5 CDK astrograph + FLI PL6303E at iTelescope.NET,
[size=13.3333px]Siding Spring Observatory, NSW, Australia, via TOCP page);
[size=13.3333px]10.7018, 14.10 V (Kiyota);
[size=13.3333px]10.7018, 11.781 Rc (Kiyota);
[size=13.3333px]10.7018, 12.48 Ic (Kiyota);
[size=13.3333px]10.835, 12.6 unfiltered CCD (T. Noguchi, Chiba-ken, Japan, via TOCP page);

[size=13.3333px]Charts: Charts with a comparison star sequence for PNV J16521887-3754189
[size=13.3333px]may be created using the AAVSO Variable Star Plotter (VSP) at
[size=13.3333px]https://www.aavso.org/vsp[size=13.3333px]. Be sure to include the hyphen and space
[size=13.3333px]in the name, as shown.

[size=13.3333px]Submit observations: Please submit observations to the AAVSO
[size=13.3333px]International Database using the name PNV J16521887-3754189. Once
[size=13.3333px]a GCVS name is announced in an IAU Circular or CBET, please use
[size=13.3333px]that name.

[size=13.3333px]Notes:
[size=13.3333px]a. Designated PNV J16521887-37541890 when posted to the IAU Central
[size=13.3333px]Bureau for Astronomical Telegrams Transient Object Confirmation
[size=13.3333px]Page (TOCP) at [size=13.3333px]http://www.cbat.eps.harvard.edu/unconf/tocp.html[size=13.3333px].
[size=13.3333px]Most of the information in this Alert Notice is taken from
[size=13.3333px]the TOCP page or ATel #10071
[size=13.3333px]([size=13.3333px]http://www.astronomerstelegram.org/?read=10071[size=13.3333px]).

[size=13.3333px]b. H. Nishimura reports nothing is visible at this location on
[size=13.3333px]his frames taken before 2017 Jan. 25.872 UT.

[size=13.3333px]c. Position end figures
[size=13.3333px] - S. Kiyota (Kamagaya, Japan, 2017 Feb. 10.7018 UT, remotely with
[size=13.3333px]0.50-m f/4.5 CDK astrograph + FLI PL6303E at iTelescope.NET, Siding
[size=13.3333px]Spring Observatory, NSW, Australia): 18.63s, 16.44".
[size=13.3333px] - T. Noguchi (Chiba-ken, Japan, 2017 Feb. 10.835 UT): 18.66s, 16.7".

[size=13.3333px]d. Nearby stars
[size=13.3333px] - H. Nishimura notes in his discovery report that there is a red
[size=13.3333px]star within several arc seconds of the nova.
[size=13.3333px] - T. Noguchi (Chiba-ken, Japan) reports there is a star (mag. 15.9)
[size=13.3333px]at same position on DSS (1995).
[size=13.3333px] - P. Schmeer (Bischmisheim, Germany) reports that "the 'red star
[size=13.3333px]within several arc seconds' is only about 0.3" from the positions
[size=13.3333px]reported by S. Kiyota and T. Noguchi, respectively. Magnitudes for
[size=13.3333px]this star from several catalogues: USNO-B1.0 0520-0568078 (R1= 15.04,
[size=13.3333px]B2= 18.54, R2= 15.86, I= 12.46), GSC2.3 S8V6023335 (F= 16.30,
[size=13.3333px]j= 20.16, V= 16.97, N= 13.14), 2MASS J16521864-3754166 (J= 10.282,
[size=13.3333px]H= 9.104, K= 8.596), WISE J165218.64-375416.5 (W1= 8.437, W2= 8.399,
[size=13.3333px]W3= 7.954, W4= 7.950)".
[size=13.3333px]- P. Schmeer also notes the nova is only 6.7' north of miu2 Scorpii
[size=13.3333px](V= 3.6 mag).


[size=13.3333px]e. Images
[size=13.3333px] - S. Kiyota (Kamagaya, Japan, 2017 Feb. 10.7018 UT, remotely with
[size=13.3333px]0.50-m f/4.5 CDK astrograph + FLI PL6303E at iTelescope.NET, Siding
[size=13.3333px]Spring Observatory, NSW, Australia):
[size=13.3333px]http://meineko.sakura.ne.jp/ccd/PNV_16521887-3754189.jpg
[size=13.3333px] - T. Noguchi (Chiba-ken, Japan, 2017 Feb. 10.835 UT):
[size=13.3333px]http://park8.wakwak.com/~ngc/images/PNVinSco_20170210.jpg[size=13.3333px]


[size=13.3333px]Congratulations to Hideo Nishimura on his latest discovery!


[size=13.3333px]This AAVSO Alert Notice was compiled by Elizabeth O. Waagen.

[size=13.3333px]----------------------------------
[size=13.3333px]SUBMIT OBSERVATIONS TO THE AAVSO

[size=13.3333px]Information on submitting observations to the AAVSO may be found at:
[size=13.3333px]https://www.aavso.org/webobs

[size=13.3333px]ALERT NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION

[size=13.3333px]An Alert Notice archive is available at the following URL:
[size=13.3333px]https://www.aavso.org/alert-notice-archive

[size=13.3333px]Subscribing and Unsubscribing may be done at the following URL:
[size=13.3333px]https://www.aavso.org/observation-notification#alertnotices

[size=13.3333px]-------------------------------------------------
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