Sunday, July 18, 2010

If Married Should I Claim One Or Zero

V610 Herculis: a little mystery

V610 Herculis is one of a series of cataclysmic variable stars that I usually watch in the summertime. Every night or two nights usually take pictures of the fields in a dozen of these stars, and the next day by locating and photometric measurement of variable stars contained in the footage, using astrometric and FOCAS II.

Occasionally one of these cataclysmic decides to break the monotony and erupt, brightening about 4 to 5 magnitudes, making the image fits a star appears in the marked location, rather than a fund noisy as usual, when the variable remains in its resting state, with a magnitude so weak that is beyond the scope of my team of 200 mm aperture.



V610 Her Country
July 10 (left) and 14 (right).

The latest star to "take note" Hercules was V610, which since the last observation, July 10, 2010, remained below 17.50V magnitude, and measuring the image on July 14 saw no problem variable, weak but well featured on the merits , 16.59V glossy as I could measure in the FOCAS II.

Thinking that at least for a few days V610 Her maximum magnitude would be visible, as is normal. But surprisingly, the night of 15 to 16 July was gone, had returned to the resting state, the weaker of the mag. 17.


Images of V610 Herculis field, July 14 (left) and 15 (right). Within 24 hours of the outbreak is gone.

Now the question is whether either the burst has been remarkably short, or just what I have detected in recent times. In the second case, also would result in a rash particularly short for what I usually do dwarf nova-like variables.

0 comments:

Post a Comment