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TCP J07134590-2112330: classical galactic nova (12.0 mag) in Canis Major

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SPK
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TCP J07134590-2112330: classical galactic nova (12.0 mag) in Canis Major

TCP J07134590-2112330 (N)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=612022

RA 07h13m45.90s, DEC -21°12'33.0" (J2000.0)
2018 March 24.4964 UT, 12.0 mag (CCD, unfiltered)
Discoverer: Yuji Nakamura (Kameyama, Mie, Japan)

2018 03 24.4964 UT
Yuji Nakamura, Kameyama, Mie, Japan, reports his discovery of this TCP (mag 12.0) in CMa on a CCD frame taken on 2018 Mar 24.4964 UT (limiting mag 15.1) using a 10cm reflector F3.0 telescope. He confirmed this object on other 3 frames taken on the same night. The object was not shown on a frame taken on 2018 Mar 17.5107 UT (limiting mag 15.4).

2018 03 24.79 UT
USNO-B1.0 0687-0122255 (07 13 45.83 -21 12 27.3, R= 19.6 mag; G= 20.21 mag in Gaia DR1) is 5.4" away, the nearest Pan-STARRS1 source (07 13 45.84 -21 12 31.3, g= 21.55 mag) is 1.9" away from the transient's position. No previous outbursts or eruptions were recorded by the ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) in 2012 February and since 2014 December; latest available observation: 2018 March 23.153 UT, V= 15.5 mag (contaminated by a 15 mag star
9" away): https://asas-sn.osu.edu/light_curves/b38524a4-4dff-49e8-af69-18d14ce7406a
--- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

2018 03 24.831 UT
Visual magnitude estimate by P. Schmeer, Bischmisheim, Germany:
2018 Mar. 24.831 UT, 12.8 (203-mm Schmidt-Cassegrain telescope).

Follow-up reports: http://www.cbat.eps.harvard.edu/unconf/followups/J07134590-2112330.html

Clear skies,
Patrick

SPK
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Spectroscopic confirmation as a galactic classical nova

Jay Strader, Laura Chomiuk, Arash Bahramian, Sam Swihart (Michigan State):
"Spectroscopic Confirmation of TCP J07134590-2112330 as a Galactic Classical Nova in Canis Major" (ATel #11475)
http://www.astronomerstelegram.org/?read=11475

SPK
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Barbara Harris's report: V= 12.11 on Mar. 25.097 UT

TCP J07134590-2112330
V 12.113,err 0.012
B 12.916, err 0.026
2018/03/25 02:19 UT

(copied from https://www.aavso.org/tcp-j07134590-2112330-new-transient-120-mag-canis-...)

SPK
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Latest ASAS-SN Sky Patrol observation
FRF
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New AAVSO chart and sequence

New AAVSO chart for TCP J07134590-2112330 can be dowloaded here:
https://www.aavso.org/apps/vsp/chart/X22790AR.png

Clear skies,

Robert

FRF
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CBET 4499: Nova CMa 2018 = TCP J07134590-21

CBET 4499: 20180325 : NOVA CANIS MAJORIS 2018 = TCP J07134590-2112330

http://www.cbat.eps.harvard.edu/iau/cbet/004400/CBET004499.txt

SPK
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TCP J07134590-2112330 = Nova Canis Majoris 2018 (CBET 4499)
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