Alert Notice 455: V834 CAR = Nova Car 2012 = TCP J10502000-6406480

March 16, 2012: V834 CAR = Nova Car 2012 = TCP J10502000-6406480

Discovered by: John Seach, Chatsworth Island, NSW, Australia

Discovery Magnitude: 10.2 on 3 images with digital SLR, 50 mm f/1.0 lens

Discovery date: 2012 February 26.543 UT

Coordinates: RA 10 50 19.66  Dec. -64 06 46.7 (J2000.0)
Coordinates from A. Oksanen and C. Harlingten (see Note b).

Spectra: Red spectra by F. M. Walter, Stony Brook University, and M. Hernandez, Cerro Tololo Interamerican Observatory, taken Mar. 7.01 UT with the SMARTS 1.5-m telescope (+ RC spectrograph) indicate the object appears to be a classical Fe II nova near maximum.

Observations reported to the AAVSO: Over 3,200 visual and photometric observations of V834 Car have been reported to the AAVSO to date by 11 observers. They may be viewed, plotted, or downloaded via the AAVSO website ( Nightly rough V averages are given here to show the general trend:
2012 Mar. 1-2 UT: 10.4
Mar. 2-3: 10.5
Mar. 3-4: 10.6
Mar. 4-5: 10.7
Mar. 5-6: 11.0
Mar. 6-7: 11.0
Mar. 7-8: 11.3
Mar. 8-9: 11.4
Mar. 9-10: 11.4
Mar. 10-11: 11.5
Mar. 11-12: 11.8
Mar. 12-13: 12.0
Mar. 13-14: 12.1
Mar. 14-15: 12.3:
Mar. 15-16: 12.2

Observers include: Alexandre Amorim, Florianopolis, Brazil; Sergio Bais, Olavarria, Argentina; David Blane, Henley-on-Klip, South Africa; Terry Bohlsen, Armidale, NSW, Australia; Brian Fraser, Henley-on-Klip, South Africa; Josch Hambsch, Mol, Belgium; Mike Linnolt, Ocean View, HI; Hiroshi Matsuyama, Kanimbla, QLD, Australia; Arto Oksanen, Muurame, Finland; Peter Starr, Coonabarabran, NSW, Australia; Thiam Guan Tan, Dalkeith, WA, Australia.

Charts: Finder charts may be plotted using the AAVSO International Variable Star Plotter (VSP) at

Please report observations to the AAVSO International Database as V834 CAR.

a. Initially announced in AAVSO Special Notice #266 (Waagen). Additional information published in IAU CBET 3040 (Daniel W. E. Green, ed.) and IAU Circular 9251 (Green, ed.).

b. No object at location on survey images taken on February 23.424 UT 2012; possible image of nova on an image taken on February 25.733 UT 2012, at limit of visibility (magnitude 11).

c. Confirmation by Arto Oksanen, Muurame, Finland, and Caisey Harlingten at V=10.4 from CCD images taken 2012 March 1.1552 UT with a 0.50-m telescope in San Pedro de Atacama, Chile. Oksanen comments that the object looks brighter in Blue. V-band image at Light curve from 5-hour run at:

d. Seach reports no object on POSS2 red image, and no variable star, comet, or minor planet at the position.

e. Announced on Central Bueau for Astronomical Telegrams Transient Objects Confirmation Page (TOCP) as TCP J10502000-6406480.

f. N. N. Samus, on behalf of the GCVS team, reports that the name V834 Car has been assigned to this nova.

Congratulations to John on his discovery!

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


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