Sigma Hydrids

Sigma Hydrids
Celestial map of Hydra
Parent body	Unknown
Radiant
Constellation	Hydra
Right ascension	8h 19m 60s
Declination	+02° 00′ 00″
Properties
Occurs during	December 3 to December 20
Date of peak	December 9
Velocity	58 km/s
Zenithal hourly rate	7

Sigma Hydrids are faint, minor meteor shower with peak on 9 December. ZHR is 3-5 and population index is 3. They are active from December 3 to 20.

Sigma hydrids were discovered by Richard E. McCrosky and Annette Posen.

References

• P. Clay Sherrod; Thomas L. Koed (2012). A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations. Courier Corporation. p. 59. ISBN 978-0-486-15216-5.