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Comet 289P/Blanpain

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Comet 289P/Blanpain Position

Comet 289P/Blanpain is currently in the constellation of Aquarius. The current Right Ascension is 23h 22m 33s and the Declination is -21° 11’ 37”.

23h 22m 33s
-21° 11’ 37”

Simplified sky chart showing where Comet 289P/Blanpain is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet 289P/Blanpain in Aquarius on September, 21 2019
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Hihgher precision deep sky finder chart showing where Comet 289P/Blanpain is right now (view fullscreen)

RA: 23h 22m 33s
Dec: -21° 11’ 37”
Deep sky finder chart for Comet 289P/Blanpain
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 289P/Blanpain?, a page that provides all the information needed to find Comet 289P/Blanpain in the sky and additional links to sky charts.

Comet 289P/Blanpain Distance

The distance of Comet 289P/Blanpain from Earth is currently 85,355,856 kilometers, equivalent to 0.570569 Astronomical Units. Light takes 4 minutes and 44.7165 seconds to travel from Comet 289P/Blanpain and arrive to us.

4 minutes and 44.7165 seconds

The following chart shows the distance of Comet 289P/Blanpain from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Comet 289P/Blanpain from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 289P/Blanpain from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 289P/Blanpain to Earth

Between January 2013 and December 2100 the closest approach of Comet 289P/Blanpain to Earth happens on Sat Jan 11 2020 at a distance of 0.08986062 Astronomical Units, or 13,442,958 kilometers:

Sat Jan 11 2020

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet 289P/Blanpain brightness

The current visual magnitude of Comet 289P/Blanpain is 24.92.


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.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 289P/Blanpain, 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 289P/Blanpain between January 2013 and December 2100

Comet 289P/Blanpain rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet 289P/Blanpain rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 111.3°
Max altitude: 17.1°
Azimuth: 248.8°
Comet 289P/Blanpain is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet 289P/Blanpain touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet 289P/Blanpain Orbital Elements

The following table lists the orbital elements of Comet 289P/Blanpain at epoch 11 March 2005 00:00 UTC (JD: 2453441.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.67584866
Orbit inclination i 5.93261846°
Perihelion distance q 0.99828468 AU
149,341,262 km
Aphelion distance Q 5.16108933 AU
772,087,976 km
Semi-major axis a 3.07968701 AU
460,714,619 km
Orbital period period 5.4000 years
1,974.0507 days
Date of perihelion transit Tp 2003-Dec-11 16:00:49
2,452,985.1672 JD
Next perihelion transit 2009-May-07 17:13
2,454,959.2179 JD
Argument of perihelion peri 9.0588114361341°
Longitude of the ascending node node 69.32907039435°
Mean anomaly M 83.219642986088°
Mean motion n 0.18236614°/day

Visualization of Comet 289P/Blanpain Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 289P/Blanpain with respect of the Sun and the orbits of the major planets. The position of Comet 289P/Blanpain 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 289P/Blanpain
View Comet 289P/Blanpain in the 3D Solar System Simulator

Comet 289P/Blanpain 15 Days Ephemeris

The following table lists the ephemerides of Comet 289P/Blanpain computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 289P/Blanpain in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Sep 14 23h 32m 27s -19° 32’ 21” 25.42 Aquarius
2019 Sep 15 23h 31m 11s -19° 46’ 23” 25.35 Aquarius
2019 Sep 16 23h 29m 53s -20° 00’ 24” 25.28 Aquarius
2019 Sep 17 23h 28m 32s -20° 14’ 22” 25.21 Aquarius
2019 Sep 18 23h 27m 09s -20° 28’ 18” 25.14 Aquarius
2019 Sep 19 23h 25m 44s -20° 42’ 07” 25.07 Aquarius
2019 Sep 20 23h 24m 16s -20° 55’ 51” 25.00 Aquarius
2019 Sep 21 23h 22m 47s -21° 09’ 26” 24.93 Aquarius
2019 Sep 22 23h 21m 18s -21° 22’ 53” 24.86 Aquarius
2019 Sep 23 23h 19m 45s -21° 36’ 07” 24.79 Aquarius
2019 Sep 24 23h 18m 11s -21° 49’ 09” 24.72 Aquarius
2019 Sep 25 23h 16m 35s -22° 01’ 58” 24.65 Aquarius
2019 Sep 26 23h 14m 58s -22° 14’ 30” 24.58 Aquarius
2019 Sep 27 23h 13m 21s -22° 26’ 44” 24.51 Aquarius