2008CBET.1596....1V -
Central Bureau Electronic Telegrams, 1596, 1 (2008/December-0)
V1647 Orionis.
VENKAT V. and ANANDARAO B.G.
Abstract (from CDS):
V. Venkat and B. G. Anandarao, Astronomy and Astrophysics Division, Physical Research Laboratory, Ahmedabad, report near-infrared photometry done at Mt. Abu Observatory's 1.2-m telescope (+ NICMOS infrared array) during Nov. 21.848-21.883 UT on the eruptive young stellar object V1647 Ori. The object was very recently reported to be in its strong outburst phase from optical observations (IAUCs 8968, 8969) after having recovered from the earlier outburst during 2004-2005 (Acosta-Pulido et al. 2007, A.J. 133, 2020, and references therein). These recent observations, made on a very clear and photometric night, confirm the outburst phase, showing magnitudes in J = 10.8, H = 8.9, and K' = 7.7, with typical errors of less than ± 0.1 mag in each band; these values are very close to those at its brightest phase during the 2004-2005 outburst and are much brighter than those in the quiescent phase. The corresponding current infrared images clearly show the presence of McNeil's nebula around V1647 Ori. Follow-up observations are planned.
(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases
Other object types:
Y*O
(2012AJ,HOPS,...),
smm
(2007MNRAS,JCMTSE,...),
X
(CXOU,2XMM,...),
*
(2021ApJ,AP,...),
IR
(HGBS,IRAS),
Or*
(2017ARep),
Y*?
(2007MNRAS),
V*
(V*),
cor
([NW2007]),
Rad
(LMZ),
NIR
(2MASS),
Opt
(SDSS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
(redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
[error] : error of the corresponding value displayed before
(wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or '∼'(unknown)
quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
References (286 between 1850 and 2024) (Total 286)
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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