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Just back from a trip through Libya I read the comments of Dr. Kato on the surprising discrepancies between observations of V Gem [vsnet-chat 6202]. Here are my comments on this case, using the classifications of Dr. Kato. 1) Observations with no marks - they are of V Gem itself, using adaequate large aperture with high magnifications 2) Group A : they are clearly misidentifications; but I cannot find out which field star is confused with V. Possibly the 94 and 82 of the AAVSO b- chart 3) group B : typical misidentifications, when using a too small telescope and V Gem is getting faint, maybe the 116-star is confused with V. One question remains however : why did this observer not miss the 116 in the field? The V Gem-case is a typical example of observing-biases and misidentifications. Owners with small telescopes should avoid to want "too much", and leave the fainter variables to the larger instruments. Regards, Georg Comello | Tel. : (31)-50-3634050 Kapteyn Laboratorium | Fax : (31)-50-3636100 University of Groningen | E-mail: comello@astro.rug.nl P.O. Box 800, 9700 AV Groningen | The Netherlands |
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