Nova Sco 2018 - PNV J17180658-3204279

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
回覆文章
PTS
夸克星
文章: 6161
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Nova Sco 2018 - PNV J17180658-3204279

文章 PTS » 週四 01 2月, 2018 06:24

AAVSO Alert Notice 612
Nova Sco 2018 - PNV J17180658-3204279
January 31, 2018

Event: Nova in Scorpius - Nova Sco 2018 = PNV J17180658-3204279

Discovered by: Hideo Nishimura (Kakegawa, Shizuoka-ken, Japan), reported by S. Nakano (Sumoto, Japan)

Discovery magnitude: unfiltered CCD magnitude 11.0 (three 10-second images using DSLR with 200-mm f/3.2 lens)

Discovery date: 2018 January 17.869 UT

Coordinates (2000.0): R.A. 17 18 06.37 Decl. -32 04 27.7 (from VSX)

Spectra: Spectroscopy indicating that PNV J17180658-3204279 is a classical Fe II-type nova was obtained on 2018 on January 21.36 UT by J. Strader et al. (Michigan State), using the 4.1-m Southern Astrophysical Research Telscope (+ Goodman spectrograph) at Cerro Pachon, Chile (ATel #11209; reported in CBET 4481).

Observing recommendations: Observations of all types (visual, CCD, DSLR, spectroscopy) and multiple bands (BVI in particular) as instrumentation permits are strongly encouraged as the nova evolves.

Observations reported to the AAVSO:
2018 Jan. 15.872 UT, <12 (H. Nishimura, Kakegawa, Shizuoka-ken, Japan, reported by S. Nakano; CBET 4481);
17.851, 10.8 U (Y. Sakurai, Mito, Ibaraki-ken, Japan, unfiltered CCD mag, reported by S. Nakano; CBET 4481);
17.869, 10.2 U (T. Noguchi, Katori, Chiba-ken, Japan, unfiltered CCD mag, reported by S. Nakano; CBET 4481);
18.720, 11.0 V (R. Kaufman, Bright, Victoria; four DSLR camera images; CBET 4481);
18.7480, 10.74 V +/-0.042 (R. Fidrich, Budapest, Hungary);
18.7589, 12.33 B +/-0.08 (S. O'Connor, St. George, Bermuda);
18.7603, 10.69 V +/-0.02 (O'Connor);
18.7615, 9.01 I +/-0.0 (O'Connor);
18.8375, 10.9 (A. Pearce, Nedlands, W. Australia);
19.38615, 11.117 V +/-0.019 (J.-F. Hambsch, Mol, Belgium; remotely at Atacama, Chile);
19.38672, 11.082 V +/-0.021 (Hambsch);
19.38723, 9.100 I +/-0.030 (Hambsch);
19.38762, 9.129 I +/-0.029 (Hambsch);
19.38828, 12.657 B +/-0.072 (Hambsch);
19.38902, 12.652 B +/-0.078 (Hambsch);
19.75188, 11.054 V +/-0.003 (Pearce);
19.7533, 10.103 R +/-0.008 (Pearce);
19.7553, 12.683 B +/-0.005 (Pearce);
19.7559, 11.10 V +/-0.02 (O'Connor);
19.756, 12.42 B (S. Kiyota, Kamagaya, Japan; iTelescope 0.43-m f/6.8 CDK astrograph at Siding Spring Observatory, NSW, Australia; CBET 4481);
19.756, 11.12 V (Kiyota);
19.756, 10.06 Rc (Kiyota);
19.756, 9.25 Ic (Kiyota);
19.8368, 11.4 (Pearce);
20.48958, <9.6 (L. Shotter, Uniontown, PA);
20.8306, 11.4 (Pearce);
21.8465, 11.6 (Pearce);
22.8361, 11.7 (Pearce);
24.8340, 12.0 (Pearce);
25.8264, 12.2 (Pearce);
26.8389, 12.3 (Pearce);
28.7489, 12.59 V +/-0.02 (O'Connor);
28.8451, 12.5 (Pearce);

Charts: Charts with a comparison star sequence for Nova Sco 2018 may be created using the AAVSO Variable Star Plotter (VSP).

Submit observations: Please submit observations to the AAVSO International Database using the name NOVA SCO 2018. Once a GCVS name is announced in an IAU Circular or CBET, please use that name.

Nova Sco 2018 is the topic of the AAVSO Time Sensitive Alerts forum thread https://www.aavso.org/pnv-j17180658-320 ... g-scorpius and the Novae forum thread https://www.aavso.org/pnv-j17180658-3204279-sco.

Notes:
a. Designated PNV J17180658-3204279 when posted to the IAU Central Bureau for Astronomical Telegrams Transient Object Confirmation Page (TOCP). Unless otherwise noted and except for observations reported to the AAVSO, the information in this Alert Notice is taken from IAU CBET 4481. Spectroscopy details are in ATel #11209.

b. P. Schmeer (Saarbruecken-Bischmisheim, Germany) reports that the closest Gaia DR1 source to Fidrich's position is 2.9" away at position end figures 06.24s, 25.4"; G magnitude 18.1); three Gaia DR1 sources (G magnitude 18-91) are within 6". Schmeer also reports that the VISTA variable VVV J171806.41-320427.16 is 0".8" away at position end figures 06.41s, 27.2"; mag 18).

c. Position end figures
- H. Nishimura (2018 January 17.869 UT; discovery images): 06.58s, 27.9"
- T. Noguchi (2018 January 18.86981 UT, via Nakano) 06.44s, 28.6"
- R. Fidrich (2018 January 18.748 UT): 06.37s, 27.7"

d. Images
- R. Kaufman (2018 January 18.720 UT): https://tinyurl.com/y7mg2xg8);
- R. Fidrich (2018 January 18.748 UT): https://tinyurl.com/ycfam26k);
- T. Noguchi (2018 January 18.86981 UT): http://park8.wakwak.com/~ngc/images/PNV ... 180118.jpg

Congratulations to Hideo Nishimura on his latest discovery!

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen.

----------------------------------
SUBMIT OBSERVATIONS TO THE AAVSO

Information on submitting observations to the AAVSO may be found at:
https://www.aavso.org/webobs

ALERT NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION

An Alert Notice archive is available at the following URL:
https://www.aavso.org/aavso-alert-notic ... iscoveries

Subscribing and Unsubscribing may be done at the following URL:
https://www.aavso.org/aavso-alert-notice-subscribe

-------------------------------------------------

回覆文章

回到「業餘天文研究專區 Amateur Astronomers' Research Area」

誰在線上

正在瀏覽這個版面的使用者:沒有註冊會員 和 1 位訪客