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TimezoneEurope/London
Sunrise: 5:04 
Transit: 13:06 
Sunset: 21:07
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Comets » 

Comet 34D/Gale (Lost)

Above the horizon.  Rise: 6:49 | Tran: 14:57 | Set: 23:05
Alt: 2.59°   Az: 54.83°   Direction: North-East

Comet 34D/Gale (Lost) is in the constellation of Leo, at a distance of 764,352,340.0 kilometers from Earth. The current Right Ascension is 09h 40m 02s and the Declination is +23° 10’ 54” (apparent coordinates). The estimated magnitude of comet 34D/Gale (Lost), computed using JPL Horizons's data, is 26.55.

Finder Charts

The sky charts below show, at different resolutions, the position of comet 34D/Gale (Lost) in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 34D/Gale (Lost) in the constellation of Leo on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 34D/Gale (Lost) in the constellation of Leo on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet 34D/Gale (Lost) against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

34D/Gale (Lost)
RA: 09h 38m 35s
Dec: +23° 17’ 53”
Simplified high-resolution deep sky chart showing the current position of comet 34D/Gale (Lost). Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

09h 40m 02s
+23° 10’ 54”
16h 10m 40s
01h 50m 43s

J2000

09h 38m 35s
+23° 17’ 53”

Additional Information

Leo
n/a
n/a
n/a
n/a
26.55

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.

Rise and Set Times

The following table lists today's rise, transit and set times of comet 34D/Gale (Lost) from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 66.8°
Max altitude: 61.7°
Azimuth: 293.1°

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.

Distance from Earth

The distance of comet 34D/Gale (Lost) from Earth is currently 764,352,340.0 kilometers, equivalent to 5.1093798088 Astronomical Units. Light takes 42m 29.605s to travel from comet 34D/Gale (Lost) and arrive to us.

764,352,340.0
5.1093798088
42m 29.605s

The following graph shows the distance of comet 34D/Gale (Lost) from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of comet 34D/Gale (Lost) from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 34D/Gale (Lost) from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of comet 34D/Gale (Lost) to Earth will happen on Friday 5 June 2071 at a distance of 0.288714 Astronomical Units, or 43,191,074 kilometers:

Friday 5 June 2071
43,191,074
0.288714

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

Light Curve

The following chart shows the light curve of comet 34D/Gale (Lost), i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of comet 34D/Gale (Lost) as a function of time

Orbital Elements

The following table lists the orbital elements of comet 34D/Gale (Lost) at epoch UTC (JD: 2429080.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.76071900
Orbit inclination i 11.72810000°
Perihelion distance q 1.18290700 AU
176,960,369 km
Aphelion distance Q 8.70427170 AU
1,302,140,515 km
Semi-major axis a 4.94358930 AU
739,550,434 km
Orbital period period 11.0000 years
4,017.7500 days
Date of perihelion transit Tp June 18, 1938
2,429,067.9832 JD
Next perihelion transit June 18, 1949
2,433,085.7332 JD
Argument of perihelion peri 209.1572°
Longitude of the ascending node node 67.9235°
Mean anomaly M 1.1223642°
Mean motion n 0.08966860°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 34D/Gale (Lost) relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

15 Days Ephemeris

The following table lists the ephemerides of comet 34D/Gale (Lost) computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
Jul 10 2025 09h 33m 24s +23° 48’ 47” 26.65 Leo
Jul 11 2025 09h 34m 18s +23° 43’ 38” 26.64 Leo
Jul 12 2025 09h 35m 12s +23° 38’ 28” 26.62 Leo
Jul 13 2025 09h 36m 07s +23° 33’ 17” 26.61 Leo
Jul 14 2025 09h 37m 01s +23° 28’ 04” 26.59 Leo
Jul 15 2025 09h 37m 57s +23° 22’ 49” 26.58 Leo
Jul 16 2025 09h 38m 52s +23° 17’ 33” 26.57 Leo
Jul 17 2025 09h 39m 48s +23° 12’ 16” 26.55 Leo
Jul 18 2025 09h 40m 43s +23° 06’ 58” 26.54 Leo
Jul 19 2025 09h 41m 39s +23° 01’ 38” 26.52 Leo
Jul 20 2025 09h 42m 36s +22° 56’ 16” 26.51 Leo
Jul 21 2025 09h 43m 33s +22° 50’ 53” 26.50 Leo
Jul 22 2025 09h 44m 30s +22° 45’ 29” 26.48 Leo
Jul 23 2025 09h 45m 28s +22° 40’ 04” 26.47 Leo

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