2006CBET..428....1F -
Central Bureau Electronic Telegrams, 428, 1 (2006/March-0)
V1647 Orionis.
FEDELE D. and VAN DEN ANCKER M.E.
Abstract (from CDS):
D. Fedele and M. E. van den Ancker, European Southern Observatory (ESO), report the following magnitudes regarding the fading of the young eruptive star V1647 Ori (cf. IAUC 8284), made with the Very Large Telescope (+ FORS2): 2004 Dec. 20.262 UT, B = 21.9, R = 17.5, I = 16.1; 2006 Jan. 2.256, B > 24.9 (not detected), R = 21.3, I = 18.9 (measured in a 3"-diameter aperture). Mid-infrared observations with the ESO 3.6-m telescope (+ TIMMI2) show that on 2006 Jan. 11.170, V1647 Ori had a brightness at 12 microns of 0.9 Jy, compared to 7.6 Jy on 2004 March 8.015. This confirms the reports by Kopal et al. (2005, IBVS 5661) and by Aspin and Reipurth and others (IAUC 8600, 8681) that the eruption of V1647 Ori is ending.
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smm
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*
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(2017ARep),
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cor
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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)
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quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
References (286 between 1850 and 2024) (Total 286)
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