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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:41  ☀️ Transit: 13:03  🌅 Sunset: 19:26

Comet West (C/1975 V1-A)

Comet West (C/1975 V1-A) is currently in the constellation of Sagittarius. The current Right Ascension of Comet West (C/1975 V1-A) is 19h 40m 42s and the Declination is -16° 14’ 46” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet West (C/1975 V1-A) is 29.12 (JPL).

19h 40m 42s
-16° 14’ 46”

Today's rise, transit and set times of Comet West (C/1975 V1-A) from Greenwich, United Kingdom [change] (all times relative to the local timezone Europe/London):

Azimuth: 106.2°
Max altitude: 22.3°
Azimuth: 253.8°
  • C/1975 V1-A (West) is below the horizon from Greenwich, United Kingdom [change].
  • Given its current magnitude, C/1975 V1-A (West) is visible only through long exposure photography.
  • Go to interactive sky chart

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.

Available Resources

Comet West (C/1975 V1-A) Position and Finder Charts

Below we provide Comet West (C/1975 V1-A) finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Comet West (C/1975 V1-A) in Sagittarius on March, 30 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Comet West (C/1975 V1-A) in Sagittarius on March, 30 2023
Field of view: 10x6 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]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet West (C/1975 V1-A) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/1975 V1-A (West)
RA: 19h 40m 42s
Dec: -16° 14’ 46”
Deep sky finder chart for Comet West (C/1975 V1-A)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet West (C/1975 V1-A)?, a page that provides all the information needed to find Comet West (C/1975 V1-A) in the sky and additional links to sky charts.

Comet West (C/1975 V1-A) Distance from Earth

The distance of Comet West (C/1975 V1-A) from Earth is currently 10,996,353,874 kilometers, equivalent to 73.506085 Astronomical Units. Light takes 10 hours, 11 minutes and 19.8883 seconds to travel from Comet West (C/1975 V1-A) and arrive to us.

10 hours, 11 minutes and 19.8883 seconds

The following chart shows the distance of Comet West (C/1975 V1-A) 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.

Chart of the distance of Comet West (C/1975 V1-A) from Earth in Astronomical Units (au)

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 C/1975 V1-A (West) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet West (C/1975 V1-A) to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet West (C/1975 V1-A) to Earth happens on Fri Jul 5 2013 at a distance of 61.737494 Astronomical Units, or 9,235,797,721 kilometers:

Fri Jul 5 2013

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

Comet West (C/1975 V1-A) Brightness

The current visual magnitude of Comet West (C/1975 V1-A) is 29.12.


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 behavior 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 West (C/1975 V1-A), 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.

Chart of the magnitude of Comet West (C/1975 V1-A) as a function of time

Comet West (C/1975 V1-A) Orbital Elements

The following table lists the orbital elements of Comet West (C/1975 V1-A) at epoch 09 May 1976 00:00 UTC (JD: 2442908.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00001609
Orbit inclination i 43.07404350°
Perihelion distance q 0.19659497 AU
29,410,189 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 1976-Feb-25 05:19:38
2,442,833.7220 JD
Argument of perihelion peri 358.43172080872°
Longitude of the ascending node node 118.91753467696°
Mean anomaly M 5.455779729386E-5°
Mean motion n 0.00000073°/day

Visualization of Comet West (C/1975 V1-A) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet West (C/1975 V1-A) with respect of the Sun and the orbits of the major planets. The position of Comet West (C/1975 V1-A) 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 West (C/1975 V1-A)
View Comet West (C/1975 V1-A) in the 3D Solar System Simulator

Comet West (C/1975 V1-A) 15 Days Ephemeris

The following table lists the ephemerides of Comet West (C/1975 V1-A) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet West (C/1975 V1-A) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Mar 23 19h 40m 35s -16° 15’ 38” 29.12 Sagittarius
2023 Mar 24 19h 40m 36s -16° 15’ 30” 29.12 Sagittarius
2023 Mar 25 19h 40m 36s -16° 15’ 24” 29.12 Sagittarius
2023 Mar 26 19h 40m 37s -16° 15’ 17” 29.12 Sagittarius
2023 Mar 27 19h 40m 38s -16° 15’ 11” 29.12 Sagittarius
2023 Mar 28 19h 40m 41s -16° 15’ 05” 29.12 Sagittarius
2023 Mar 29 19h 40m 41s -16° 14’ 58” 29.12 Sagittarius
2023 Mar 30 19h 40m 41s -16° 14’ 52” 29.12 Sagittarius
2023 Mar 31 19h 40m 42s -16° 14’ 45” 29.12 Sagittarius
2023 Apr 01 19h 40m 44s -16° 14’ 39” 29.12 Sagittarius
2023 Apr 02 19h 40m 45s -16° 14’ 35” 29.12 Sagittarius
2023 Apr 03 19h 40m 45s -16° 14’ 29” 29.12 Sagittarius
2023 Apr 04 19h 40m 45s -16° 14’ 22” 29.12 Sagittarius
2023 Apr 05 19h 40m 46s -16° 14’ 17” 29.12 Sagittarius