Comet 74P/Smirnova-Chernykh
Comet 74P/Smirnova-Chernykh Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet 74P/Smirnova-Chernykh is now with respect to the brightest stars and constellations.
More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.
High Precision Live Sky Chart
The Observed Magnitude and Coma Diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behvior of comets. When available please refer to the Observed Magnitude value and consider the Estimated 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.
Comet 74P/Smirnova-Chernykh Rise and Set Times
Today's Comet 74P/Smirnova-Chernykh rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.
Comet 74P/Smirnova-Chernykh Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 74P/Smirnova-Chernykh with respect of the Sun and the orbits of the major planets. The position of Comet 74P/Smirnova-Chernykh and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!
View Comet 74P/Smirnova-Chernykh in the 3D Solar System Simulator
Comet 74P/Smirnova-Chernykh Ephemeris
The following table lists the ephemerides of Comet 74P/Smirnova-Chernykh computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 74P/Smirnova-Chernykh in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2018 Dec 04 | 14h 36m 38s | -11° 15’ 56” | 17.82 | Libra |
| 2018 Dec 05 | 14h 37m 49s | -11° 21’ 43” | 17.81 | Libra |
| 2018 Dec 06 | 14h 38m 58s | -11° 27’ 29” | 17.81 | Libra |
| 2018 Dec 07 | 14h 40m 09s | -11° 33’ 11” | 17.81 | Libra |
| 2018 Dec 08 | 14h 41m 20s | -11° 38’ 52” | 17.81 | Libra |
| 2018 Dec 09 | 14h 42m 29s | -11° 44’ 27” | 17.81 | Libra |
| 2018 Dec 10 | 14h 43m 40s | -11° 50’ 02” | 17.81 | Libra |
| 2018 Dec 11 | 14h 44m 48s | -11° 55’ 32” | 17.80 | Libra |
| 2018 Dec 12 | 14h 45m 57s | -12° 01’ 00” | 17.80 | Libra |
| 2018 Dec 13 | 14h 47m 08s | -12° 06’ 24” | 17.80 | Libra |
| 2018 Dec 14 | 14h 48m 15s | -12° 11’ 44” | 17.80 | Libra |
| 2018 Dec 15 | 14h 49m 24s | -12° 17’ 03” | 17.80 | Libra |
| 2018 Dec 16 | 14h 50m 32s | -12° 22’ 18” | 17.79 | Libra |
| 2018 Dec 17 | 14h 51m 41s | -12° 27’ 29” | 17.79 | Libra |
Distance of Comet 74P/Smirnova-Chernykh from Earth
The following chart shows the distance of Comet 74P/Smirnova-Chernykh from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.
The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 74P/Smirnova-Chernykh is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet 74P/Smirnova-Chernykh
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 74P/Smirnova-Chernykh, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.
Comet 74P/Smirnova-Chernykh Orbital Elements
The following table lists the orbital elements of Comet 74P/Smirnova-Chernykh at epoch 17 November 2011 00:00 UTC (JD: 2455883.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.14729740 |
| Orbit inclination | i | 6.65048837° |
| Perihelion distance | q | 3.55401777 AU 531,673,492 km |
| Aphelion distance | Q |
4.78187282 AU 715,357,994 km |
| Semi-major axis | a |
4.16794530 AU 623,515,743 km |
| Orbital period | period |
8.5100 years 3,108.0031 days |
| Date of perihelion transit | Tp | 2009-Jul-27 07:02:12 2,455,039.7932 JD |
| Next perihelion transit | 2018-Jan-29 07:06 2,458,147.7963 JD |
|
| Argument of perihelion | peri | 86.758811626312° |
| Longitude of the ascending node | node | 77.080835829893° |
| Mean anomaly | M | 97.726558446377° |
| Mean motion | n | 0.11583000°/day |
| Closest approach to Earth* | 2018-Mar-13 | |
| Distance of closest approach* | 2.55557558 AU 382,308,665 km |
|
* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.