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Comet C/2017 B3 (LINEAR)

Available Resources

Comet C/2017 B3 (LINEAR) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2017 B3 (LINEAR) 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.

Comet C/2017 B3 (LINEAR) in Hydra on September, 22 2017
12h 35m 53s
-31° 11’ 43”
17.85
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet C/2017 B3 (LINEAR) Rise and Set Times

Today's Comet C/2017 B3 (LINEAR) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 121.2°
Max altitude: 7.3°
Azimuth: 238.8°

Comet C/2017 B3 (LINEAR) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 B3 (LINEAR) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 B3 (LINEAR) 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!

Orbit Diagram of Comet C/2017 B3 (LINEAR)
View Comet C/2017 B3 (LINEAR) in the 3D Solar System Simulator

Comet C/2017 B3 (LINEAR) Ephemeris

The following table lists the ephemerides of Comet C/2017 B3 (LINEAR) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2017 B3 (LINEAR) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Sep 15 17.88 12h 31m 00s -30° 28’ 37” Hydra
2017 Sep 16 17.88 12h 31m 41s -30° 34’ 35” Hydra
2017 Sep 17 17.88 12h 32m 22s -30° 40’ 36” Hydra
2017 Sep 18 17.87 12h 33m 05s -30° 46’ 41” Hydra
2017 Sep 19 17.87 12h 33m 47s -30° 52’ 50” Hydra
2017 Sep 20 17.86 12h 34m 28s -30° 59’ 03” Hydra
2017 Sep 21 17.86 12h 35m 11s -31° 05’ 21” Hydra
2017 Sep 22 17.85 12h 35m 53s -31° 11’ 43” Hydra
2017 Sep 23 17.85 12h 36m 37s -31° 18’ 08” Hydra
2017 Sep 24 17.84 12h 37m 19s -31° 24’ 38” Hydra
2017 Sep 25 17.84 12h 38m 03s -31° 31’ 10” Hydra
2017 Sep 26 17.83 12h 38m 47s -31° 37’ 49” Hydra
2017 Sep 27 17.83 12h 39m 30s -31° 44’ 30” Hydra
2017 Sep 28 17.82 12h 40m 14s -31° 51’ 15” Hydra

Distance of Comet C/2017 B3 (LINEAR) from Earth

The following chart shows the distance of Comet C/2017 B3 (LINEAR) 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.

Distance of Comet C/2017 B3 (LINEAR) from Earth between January 2013 and December 2075

Light Curve of Comet C/2017 B3 (LINEAR)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2017 B3 (LINEAR), 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.

Predicted magnitude of Comet C/2017 B3 (LINEAR) between January 2013 and December 2075

Comet C/2017 B3 (LINEAR) Orbital Elements

The following table lists the orbital elements of Comet C/2017 B3 (LINEAR) at epoch 15 March 2017 00:00 UTC (JD: 2457828.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00211952
Orbit inclination i 54.21928385°
Perihelion distance q 3.92762275 AU
587,564,002 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2019-Feb-02 01:28:10
2,458,516.5612 JD
Argument of perihelion peri 284.57509248312°
Longitude of the ascending node node 2.2201763736777°
Mean anomaly M -0.0085014587555538°
Mean motion n 0.00001236°/day
Closest approach to Earth* 2019-Aug-20
Distance of closest approach* 3.48028178 AU
520,642,745 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.