Comet Rent - Roland was discovered on November 8, 1956 by the Belgian astronomers S. Aren and J. Roland from photographs. It was the eighth comet discovered in 1956, and it was named Rent - Roland 1956h in honor of its discoverers. Since this was the third comet passing through the perihelion in 1957, it was subsequently renamed in 1957 III. [3] As a result, the International Astronomical Union assigned it the designation C / 1956 R1 (Arend – Roland), with the addition of “C /” indicating that it is a long-period comet and “R1” indicating that it was the first comet discovered during half of the month indicated by the letter “R” (that is, from September 1 to September 15). [four]
| C / 1956 R1 (For Rent - Rolana) | |
|---|---|
 | |
| Opening | |
| Discoverer | Sylvain Aren Georges Roland |
| opening date | November 8, 1956 |
| Alternative notation | 1957 III, 1956h, C / 1956 R1 |
| Orbit characteristics | |
| Age 2435920.5 (March 23, 1957) | |
| Eccentricity | 1,00024 [1] 1,000199 [2] |
| Semimajor axis ( a ) | 6,731.91 billion km (45,000 AU ) |
| Perihelion ( q ) | 0.31604 a. e. |
| Aphelion ( Q ) | n d. |
| Circulation Period ( P ) | n d. |
| Orbital inclination | 119.94 ° |
| Last perihelion | April 8, 1957 |
| Next perihelion | hyperbolic trajectory |
| physical characteristics | |
Note
- ↑ JPL Small-Body Database Browser: C / 1956 R1 (Arend – Roland) . Jet Propulsion Laboratory (1958-04-11 last obs). Date of treatment March 13, 2011. Archived on September 14, 2012.
- ↑ Horizons output. Barycentric Osculating Orbital Elements for Comet C / 1956 R1 (Arend – Roland) . Date of treatment March 12, 2011. Archived on September 14, 2012. (Solution using the Solar System Barycenter and barycentric coordinates . Select Ephemeris Type: Elements and Center: @ 0).
- ↑ Kaler, James B. The ever-changing sky: a guide to the celestial sphere. - Cambridge University Press, 2002 .-- P. 358. - ISBN 0521499186 .
- ↑ Cometary Designation System (unknown) // IAU Minor Planet Center. - Center for Astrophysics, Harvard University.
Links
- Orbital simulation from JPL (Java) / Ephemeris
- C / 1956 R1 (Arend-Roland)
- Picture of antitail