2012BAVSR..61...38W

Query : 2012BAVSR..61...38W

2012BAVSR..61...38W - BAV Rundbrief, 61, 38 (2012/March-0)

TW Vul - ein vergessener unbekannter heidelberger veraenderlicher.

WENZEL K.

Abstract (from CDS):

In 1904, Max Wolf discovered a variable star on Bruce Plates in Heidelberg. On a few plates the star is bright (13 - 14m) and on other plates it is invisible. In the literature I found only the disovery article by Max Wolf. Visual inspections with my 16inch Newton, CCD frames from W. Dueskau and the Bradford Robotic Telescope (BRT) show that the star variables from 16 - 18m. I could not find an outburst which showed the star as bright as in the past. Here, I present the historical lightcurve based on the Heidelberg Bruce Archive, the POSS and modern CCD frames from W. Dueskau and the BRT. Wolf's star TW Vul is probably a cataclysmic variable.

Abstract Copyright: ∼

Journal keyword(s):

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* TW Vul CV* 20 39 34.4839246920 +27 15 55.849400208           ~ 6 0

Query : 2012BAVSR..61...38W

Basic data :
V* TW Vul -- Cataclysmic Binary
Other object types: otypes_help 		V* (AN,V*), CV* (2021ApJ), * (Gaia), NIR (2MASS)
ICRS coord. (ep=J2000) : 		20 39 34.4839246920 +27 15 55.849400208 (Optical) [ 0.0389 0.0371 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 37 27.1482208224 +27 05 17.519927630 [ 0.0389 0.0371 90 ]
Gal coord. (ep=J2000) : 		069.7145408527821 -08.6664354502880 [ 0.0389 0.0371 90 ]
Proper motions mas/yr : 		-6.299 -17.043 [0.059 0.055 90] A 2020yCat.1350....0G
Parallaxes (mas): 		1.9637 [0.0601] A 2020yCat.1350....0G
Fluxes (4) :
G 17.235712 [0.010384] C 2020yCat.1350....0G
J 15.219 [0.047] C 2003yCat.2246....0C
H 14.914 [0.078] C 2003yCat.2246....0C
K 14.407 [0.085] C 2003yCat.2246....0C
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Identifiers (6) :
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2MASS J20393449+2715558 TIC 290769912 Gaia DR2 1856408770857725184
AN 148.1904 V* TW Vul Gaia DR3 1856408770857725184

References (6 between 1850 and 2026) (Total 6)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Distance : 2    Plx : 2    PM : 2   

   

External archives :

Link by name to the catalogue in VizieR :

2MASS J20393449+2715558 V* TW Vul Gaia DR2 1856408770857725184 Gaia DR3 1856408770857725184

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