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Comet 40P/Vaisala 1

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Comet 40P/Vaisala 1 Position

Comet 40P/Vaisala 1 is currently in the constellation of Aquarius. The current Right Ascension is 23h 53m 43s and the Declination is -10° 01’ 58”.

23h 53m 43s
-10° 01’ 58”

Simplified sky chart showing where Comet 40P/Vaisala 1 is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet 40P/Vaisala 1 in Aquarius on September, 15 2019
Field of view: 60x30 degrees
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 = 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 40P/Vaisala 1 is right now (view fullscreen)

40P/Vaisala 1
RA: 23h 53m 43s
Dec: -10° 01’ 58”
Deep sky finder chart for Comet 40P/Vaisala 1
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 40P/Vaisala 1?, a page that provides all the information needed to find Comet 40P/Vaisala 1 in the sky and additional links to sky charts.

Comet 40P/Vaisala 1 Distance

The distance of Comet 40P/Vaisala 1 from Earth is currently 1,045,443,136 kilometers, equivalent to 6.988356 Astronomical Units. Light takes 58 minutes and 7.2229 seconds to travel from Comet 40P/Vaisala 1 and arrive to us.

58 minutes and 7.2229 seconds

The following chart shows the distance of Comet 40P/Vaisala 1 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 40P/Vaisala 1 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 40P/Vaisala 1 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 40P/Vaisala 1 to Earth

Between January 2013 and December 2100 the closest approach of Comet 40P/Vaisala 1 to Earth happens on Mon Mar 24 2070 at a distance of 0.87946014 Astronomical Units, or 131,565,365 kilometers:

Mon Mar 24 2070

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

Comet 40P/Vaisala 1 brightness

The current visual magnitude of Comet 40P/Vaisala 1 is 27.65.


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 40P/Vaisala 1, 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 40P/Vaisala 1 between January 2013 and December 2100

Comet 40P/Vaisala 1 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 40P/Vaisala 1 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 100.0°
Max altitude: 28.5°
Azimuth: 260.0°
Comet 40P/Vaisala 1 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 40P/Vaisala 1 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 40P/Vaisala 1 Orbital Elements

The following table lists the orbital elements of Comet 40P/Vaisala 1 at epoch 27 August 2015 00:00 UTC (JD: 2457262.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.63161520
Orbit inclination i 11.49264282°
Perihelion distance q 1.81977116 AU
272,233,891 km
Aphelion distance Q 8.05995877 AU
1,205,752,672 km
Semi-major axis a 4.93986496 AU
738,993,281 km
Orbital period period 10.9800 years
4,010.2463 days
Date of perihelion transit Tp 2014-Nov-15 20:12:59
2,456,977.3424 JD
Next perihelion transit 2025-Nov-08 02:07
2,460,987.5886 JD
Argument of perihelion peri 47.288855021729°
Longitude of the ascending node node 133.84016785708°
Mean anomaly M 25.598615967354°
Mean motion n 0.08977005°/day

Visualization of Comet 40P/Vaisala 1 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 40P/Vaisala 1 with respect of the Sun and the orbits of the major planets. The position of Comet 40P/Vaisala 1 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 40P/Vaisala 1
View Comet 40P/Vaisala 1 in the 3D Solar System Simulator

Comet 40P/Vaisala 1 15 Days Ephemeris

The following table lists the ephemerides of Comet 40P/Vaisala 1 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 40P/Vaisala 1 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Sep 08 23h 56m 42s -09° 39’ 21” 27.65 Cetus
2019 Sep 09 23h 56m 18s -09° 42’ 24” 27.65 Aquarius
2019 Sep 10 23h 55m 55s -09° 45’ 24” 27.65 Aquarius
2019 Sep 11 23h 55m 32s -09° 48’ 24” 27.65 Aquarius
2019 Sep 12 23h 55m 08s -09° 51’ 24” 27.65 Aquarius
2019 Sep 13 23h 54m 45s -09° 54’ 24” 27.65 Aquarius
2019 Sep 14 23h 54m 20s -09° 57’ 21” 27.65 Aquarius
2019 Sep 15 23h 53m 57s -10° 00’ 19” 27.65 Aquarius
2019 Sep 16 23h 53m 32s -10° 03’ 15” 27.65 Aquarius
2019 Sep 17 23h 53m 08s -10° 06’ 10” 27.65 Aquarius
2019 Sep 18 23h 52m 44s -10° 09’ 02” 27.65 Aquarius
2019 Sep 19 23h 52m 19s -10° 11’ 54” 27.65 Aquarius
2019 Sep 20 23h 51m 56s -10° 14’ 45” 27.65 Aquarius
2019 Sep 21 23h 51m 32s -10° 17’ 35” 27.65 Aquarius