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Comet 23P/Brorsen-Metcalf

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Comet 23P/Brorsen-Metcalf Position

Comet 23P/Brorsen-Metcalf is currently in the constellation of Scorpius. The current Right Ascension is 17h 10m 19s and the Declination is -37° 51’ 01”.

17h 10m 19s
-37° 51’ 01”

Simplified sky chart showing where Comet 23P/Brorsen-Metcalf is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet 23P/Brorsen-Metcalf in Scorpius on October, 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 23P/Brorsen-Metcalf is right now (view fullscreen)

RA: 17h 10m 19s
Dec: -37° 51’ 01”
Deep sky finder chart for Comet 23P/Brorsen-Metcalf
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 23P/Brorsen-Metcalf?, a page that provides all the information needed to find Comet 23P/Brorsen-Metcalf in the sky and additional links to sky charts.

Comet 23P/Brorsen-Metcalf Distance

The distance of Comet 23P/Brorsen-Metcalf from Earth is currently 5,027,944,366 kilometers, equivalent to 33.609732 Astronomical Units. Light takes 4 hours, 39 minutes and 31.4171 seconds to travel from Comet 23P/Brorsen-Metcalf and arrive to us.

4 hours, 39 minutes and 31.4171 seconds

The following chart shows the distance of Comet 23P/Brorsen-Metcalf 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 23P/Brorsen-Metcalf 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 23P/Brorsen-Metcalf from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 23P/Brorsen-Metcalf to Earth

Between January 2013 and December 2100 the closest approach of Comet 23P/Brorsen-Metcalf to Earth happens on Tue Jun 10 2059 at a distance of 1.48516672 Astronomical Units, or 222,177,780 kilometers:

Tue Jun 10 2059

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

Comet 23P/Brorsen-Metcalf brightness

The current visual magnitude of Comet 23P/Brorsen-Metcalf is 27.58.


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 23P/Brorsen-Metcalf, 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 23P/Brorsen-Metcalf between January 2013 and December 2100

Comet 23P/Brorsen-Metcalf 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 23P/Brorsen-Metcalf rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 127.8°
Max altitude: 0.7°
Azimuth: 232.2°
Comet 23P/Brorsen-Metcalf 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 23P/Brorsen-Metcalf 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 23P/Brorsen-Metcalf Orbital Elements

The following table lists the orbital elements of Comet 23P/Brorsen-Metcalf at epoch 30 September 1989 00:00 UTC (JD: 2447800.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.97195226
Orbit inclination i 19.33394047°
Perihelion distance q 0.47875271 AU
71,620,386 km
Aphelion distance Q 33.65966096 AU
5,035,413,618 km
Semi-major axis a 17.06920683 AU
2,553,517,002 km
Orbital period period 70.5200 years
25,758.3736 days
Date of perihelion transit Tp 1989-Sep-11 22:29:54
2,447,781.4374 JD
Next perihelion transit 2060-Mar-21 07:27
2,473,539.8111 JD
Argument of perihelion peri 129.61068367887°
Longitude of the ascending node node 311.58546221411°
Mean anomaly M 0.26641915255031°
Mean motion n 0.01397604°/day

Visualization of Comet 23P/Brorsen-Metcalf Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 23P/Brorsen-Metcalf with respect of the Sun and the orbits of the major planets. The position of Comet 23P/Brorsen-Metcalf 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 23P/Brorsen-Metcalf
View Comet 23P/Brorsen-Metcalf in the 3D Solar System Simulator

Comet 23P/Brorsen-Metcalf 15 Days Ephemeris

The following table lists the ephemerides of Comet 23P/Brorsen-Metcalf computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 23P/Brorsen-Metcalf in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Oct 14 17h 09m 39s -37° 53’ 04” 27.58 Scorpius
2019 Oct 15 17h 09m 45s -37° 52’ 45” 27.58 Scorpius
2019 Oct 16 17h 09m 51s -37° 52’ 27” 27.58 Scorpius
2019 Oct 17 17h 09m 56s -37° 52’ 10” 27.58 Scorpius
2019 Oct 18 17h 10m 01s -37° 51’ 52” 27.58 Scorpius
2019 Oct 19 17h 10m 06s -37° 51’ 37” 27.58 Scorpius
2019 Oct 20 17h 10m 13s -37° 51’ 20” 27.58 Scorpius
2019 Oct 21 17h 10m 18s -37° 51’ 03” 27.58 Scorpius
2019 Oct 22 17h 10m 24s -37° 50’ 48” 27.59 Scorpius
2019 Oct 23 17h 10m 31s -37° 50’ 33” 27.59 Scorpius
2019 Oct 24 17h 10m 36s -37° 50’ 17” 27.59 Scorpius
2019 Oct 25 17h 10m 42s -37° 50’ 03” 27.59 Scorpius
2019 Oct 26 17h 10m 50s -37° 49’ 50” 27.59 Scorpius
2019 Oct 27 17h 10m 55s -37° 49’ 36” 27.59 Scorpius