5D/Brorsen (Lost)

Comet 5D/Brorsen, also known as Comet Brorsen, was a periodic comet belonging to the Jupiter family of comets, which is now considered a lost comet. It was first discovered by the Danish astronomer Theodor Brorsen on February 26, 1846. Based on the collected observations, the comet had an orbital period of 5.46 years and traveled around the Sun in an eccentric orbit with the closest approach to the Sun (perihelion) at a distance of about 0.58 astronomical units (AU), and the farthest distance (aphelion) at around 5.6 AU. The latest successful observations of Comet 5D/Brorsen were conducted during the 1879 apparition, while it was not possible to find the comet again during any of the subsequent apparitions.

5D/Brorsen (Lost) is currently in the constellation of Bootes.

The current Right Ascension of 5D/Brorsen (Lost) is 14h 14m 32s and the Declination is +16° 16’ 17” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of 5D/Brorsen (Lost) is 9.43 (JPL).

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Today's rise, transit and set times of 5D/Brorsen (Lost) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

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Available Resources

• Position and finder charts (see also Where is 5D/Brorsen (Lost)?)
• Distance from Earth (see also How far is 5D/Brorsen (Lost) from Earth?)
• When does 5D/Brorsen (Lost) rise and set?
• Brightness (see also How bright is 5D/Brorsen (Lost)?)
• Orbital elements. Detailed information about 5D/Brorsen (Lost) orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of 5D/Brorsen (Lost) with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of 5D/Brorsen (Lost) for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate 5D/Brorsen (Lost) in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate 5D/Brorsen (Lost) with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where 5D/Brorsen (Lost) is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is 5D/Brorsen (Lost)?, a page that provides all the information needed to find 5D/Brorsen (Lost) in the sky and additional links to sky charts.

5D/Brorsen (Lost) Distance from Earth

The distance of 5D/Brorsen (Lost) from Earth is currently 105,098,450 kilometers, equivalent to 0.702540 Astronomical Units. Light takes 5 minutes and 50.5707 seconds to travel from 5D/Brorsen (Lost) and arrive to us.

The following chart shows the distance of 5D/Brorsen (Lost) 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.

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 5D/Brorsen (Lost) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of 5D/Brorsen (Lost) to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of 5D/Brorsen (Lost) to Earth happens on Tue Oct 26 2083 at a distance of 0.259836 Astronomical Units, or 38,870,982 kilometers:

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

5D/Brorsen (Lost) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of 5D/Brorsen (Lost), 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.

Visualization of 5D/Brorsen (Lost) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of 5D/Brorsen (Lost) with respect of the Sun and the orbits of the major planets. The position of 5D/Brorsen (Lost) 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!

5D/Brorsen (Lost) 15 Days Ephemeris

The following table lists the ephemerides of 5D/Brorsen (Lost) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate 5D/Brorsen (Lost) in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 May 26	14h 14m 35s	+23° 04’ 50”	8.72	Bootes
2023 May 27	14h 14m 26s	+22° 04’ 39”	8.82	Bootes
2023 May 28	14h 14m 21s	+21° 06’ 46”	8.91	Bootes
2023 May 29	14h 14m 17s	+20° 11’ 03”	9.01	Bootes
2023 May 30	14h 14m 17s	+19° 17’ 23”	9.10	Bootes
2023 May 31	14h 14m 17s	+18° 25’ 41”	9.19	Bootes
2023 Jun 01	14h 14m 21s	+17° 35’ 48”	9.28	Bootes
2023 Jun 02	14h 14m 26s	+16° 47’ 43”	9.37	Bootes
2023 Jun 03	14h 14m 34s	+16° 01’ 15”	9.46	Bootes
2023 Jun 04	14h 14m 43s	+15° 16’ 23”	9.54	Bootes
2023 Jun 05	14h 14m 53s	+14° 33’ 02”	9.63	Bootes
2023 Jun 06	14h 15m 06s	+13° 51’ 05”	9.71	Bootes
2023 Jun 07	14h 15m 20s	+13° 10’ 28”	9.80	Bootes
2023 Jun 08	14h 15m 37s	+12° 31’ 09”	9.88	Bootes