25D/Neujmin

Infobox Comet
name=25D/Neujmin


caption=
discoverer=Grigory Neujmin
discovery_date=February 24, 1916
designations=
epoch=December 31, 1926
aphelion=
perihelion=1.338 AU
semimajor=3.089 AU
semiminor=
orbital_circ=
eccentricity=0.567
period=5.43 a
avg_speed=
max_speed=
min_speed=
inclination= 11.75°
last_p=May 26, 2003 "(unobserved)"
next_p="Lost"

Comet 25D/Neujmin, otherwise known as Comet Neujmin 2, is a periodic comet in the solar system discovered by Grigory N. Neujmin (Simeis) on February 24, 1916.

It was confirmed by George van Biesbroeck (Yerkes Observatory, Wisconsin, USA) and Frank Watson Dyson (Greenwich Observatory, England) on March 1.

A prediction by Andrew Crommelin (Royal Observatory, Greenwich, England) for 1921 was considered unfavourable and no observations were made. The next prediction for 1927 took into account an unnamed object observed in 1920, but despite searches, nothing was seen.

Consequently this comet has remained lost since 1927.

External links

* [http://cometography.com/pcomets/025d.html 25D at Kronk's Cometography]
* [http://www9.ocn.ne.jp/~comet/pcmtn/0025d.htm 25D at Kazuo Kinoshita's Comets]
* [http://www.aerith.net/comet/catalog/0025D/index.html 25D at Seiichi Yoshida's Comet Catalog]