Comet Morehouse


C/Morehouse (1908 R1)
Picture from a 1908 postcard. [1]
Discovered byDaniel Walter Morehouse
Discovery date1908
Comet Morehouse, 1908 III, 1908c
Orbital characteristics A
AphelionN/A AU
Perihelion0.945 AU
Semi-major axisN/A AU
Orbital periodN/A a (?)
Last perihelionDecember 26, 1908
Next perihelionN/A

Comet Morehouse (modern formal designation: C/1908 R1) was a bright, non-periodic comet discovered by US astronomer Daniel Walter Morehouse and first observed on September 1, 1908. It was unusual in the rapid variations seen in the structure of its tail. At times, the tail seemed to split into up to six separate tails; at others, the tail appeared completely detached from the head of the comet. The tail was further unusual in that it formed while the comet was still 2 AU away from the Sun (where distances of 1.5 AU are more usual), and that there was a high concentration of the CO+ ion in its spectrum.

As is typical for comets fresh from the Oort Cloud, its orbital solution is more or less parabolic; if its orbit is in fact closed, it will likely not return for millions of years.


  1. ^ "Antique Astronomy Postcards: Comet Morehouse - 1908". Retrieved April 8, 2021.

External links

  • Media related to Comet Morehouse at Wikimedia Commons
  • Photographs of Comet Morehouse from the Lick Observatory Records Digital Archive, UC Santa Cruz Library's Digital Collections
  • Morehouse at the JPL Small-Body Database
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters