Comet C/1956 R1 (Arend-Roland)
Comet C/1956 R1 (Arend-Roland) is in the constellation of Camelopardalis, at a distance of
Finder Charts
The sky charts below show, at different resolutions, the position of comet C/1956 R1 (Arend-Roland) in the sky. Click on each chart to access the interactive star map tool.
The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet C/1956 R1 (Arend-Roland) against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.


Equatorial Coordinates
Apparent
J2000
Additional Information
The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.
Rise and Set Times
The following table lists today's rise, transit and set times of comet C/1956 R1 (Arend-Roland) from Wulan, China (all times relative to the local timezone Asia/Shanghai):
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Distance from Earth
The distance of comet C/1956 R1 (Arend-Roland) from Earth is currently
The following graph shows the distance of comet C/1956 R1 (Arend-Roland) from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).
The value of the distance of C/1956 R1 (Arend-Roland) from Earth is also available as a real time updated value in the live position tracker.
Closest Approach to Earth
In the period between January 1, 2013 and December 30, 2100, the closest approach of comet C/1956 R1 (Arend-Roland) to Earth happened on Tuesday 1 January 2013 at a distance of 81.582373 Astronomical Units, or 12,204,549,303 kilometers:
Note: the values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
Orbital Elements
The following table lists the orbital elements of comet C/1956 R1 (Arend-Roland) at epoch UTC (JD: 2436028.5). Source: JPL Small-Body Database
Element | Symbol | Value |
---|---|---|
Orbit eccentricity | e | 1.00024806 |
Orbit inclination | i | 119.94430131° |
Perihelion distance | q | 0.31604315 AU 47,279,383 km |
Aphelion distance | Q | n.a. |
Semi-major axis | a | n.a. |
Orbital period | period | n.a. |
Date of perihelion transit | Tp | April 8, 1957 2,435,936.5324 JD |
Argument of perihelion | peri | 308.77454251423° |
Longitude of the ascending node | node | 215.85536149059° |
Mean anomaly | M | 0.0019932238874854° |
Mean motion | n | 0.00002167°/day |
Orbit Visualization
The following chart is a 3D animated visualization of the orbit of comet C/1956 R1 (Arend-Roland) relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.
15 Days Ephemeris
The following table lists the ephemerides of comet C/1956 R1 (Arend-Roland) computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
---|---|---|---|---|
Jul 05 2025 | 04h 05m 17s | +68° 49’ 46” | N.A. | Camelopardalis |
Jul 06 2025 | 04h 05m 22s | +68° 50’ 06” | N.A. | Camelopardalis |
Jul 07 2025 | 04h 05m 27s | +68° 50’ 28” | N.A. | Camelopardalis |
Jul 08 2025 | 04h 05m 31s | +68° 50’ 49” | N.A. | Camelopardalis |
Jul 09 2025 | 04h 05m 36s | +68° 51’ 12” | N.A. | Camelopardalis |
Jul 10 2025 | 04h 05m 41s | +68° 51’ 34” | N.A. | Camelopardalis |
Jul 11 2025 | 04h 05m 46s | +68° 51’ 57” | N.A. | Camelopardalis |
Jul 12 2025 | 04h 05m 50s | +68° 52’ 19” | N.A. | Camelopardalis |
Jul 13 2025 | 04h 05m 55s | +68° 52’ 42” | N.A. | Camelopardalis |
Jul 14 2025 | 04h 05m 59s | +68° 53’ 05” | N.A. | Camelopardalis |
Jul 15 2025 | 04h 06m 03s | +68° 53’ 28” | N.A. | Camelopardalis |
Jul 16 2025 | 04h 06m 08s | +68° 53’ 52” | N.A. | Camelopardalis |
Jul 17 2025 | 04h 06m 12s | +68° 54’ 16” | N.A. | Camelopardalis |
Jul 18 2025 | 04h 06m 16s | +68° 54’ 41” | N.A. | Camelopardalis |
Additional Resources on TheSkyLive
- Comet C/1956 R1 (Arend-Roland): Complete reference information on TheSkyLive.com.
- Where is comet C/1956 R1 (Arend-Roland)?: Key information on where to find comet C/1956 R1 (Arend-Roland) in the sky.
- Distance of comet C/1956 R1 (Arend-Roland) from Earth: Find out how far comet C/1956 R1 (Arend-Roland) is from Earth right now.
- How Bright is comet C/1956 R1 (Arend-Roland)?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Rise and set times of comet C/1956 R1 (Arend-Roland) from your location.
- Interactive Sky Map: Planetarium-style interactive visualization of comet C/1956 R1 (Arend-Roland)'s position in the sky.
- Live Position Tracker: High precision real time tracker of comet C/1956 R1 (Arend-Roland)'s position using deep space imagery.
- Ephemeris: 15 days comet C/1956 R1 (Arend-Roland)'s computed ephemeris.
- Orbital elements: Information about comet C/1956 R1 (Arend-Roland) orbital parameters.
- Orbit Visualization: 3D interactive visualization showing the orbit of comet C/1956 R1 (Arend-Roland) with respect to the major Solar System objects.