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Sky-Tonight.com / Comets / 90000843 78P/Gehrels 2
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Observation Settings

Or select it on the map:
This Earth map fragment is intended to illustrate celestial motion across the sky, emphasizing both bearing and elevational perspectives. The map's center point corresponds to the transit, showcasing celestial objects at their highest point, while elevation gradually decreases towards the map edges. This dynamic representation offers insights into the changing positions of celestial bodies with a focus on their bearing and elevational trajectories.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Comet 90000843 78P/Gehrels 2 Observation Details

78P/Gehrels 2

78P/Gehrels 2 Daily Motion


90000843 78P/Gehrels 2 will be visible until December, 24, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.

78P/Gehrels 2 Visibility Timetable on October 14

78P/Gehrels 2 Rise and Set Timetable

TimeElevation
78P/Gehrels 2 rise12:20
Moon Set13:2612°
Sunset16:3137°
Civil sunset16:5938°
78P/Gehrels 2 transit17:3639°
Astrosession begin17:5939°
Moon Rise, 44.2% illuminated22:186°
78P/Gehrels 2 set22:52
Astrosession end03:48-57°

Track 78P/Gehrels 2 Position Throughout the Night

← Tue, 14 October 2025 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 78P/Gehrels 2 changing position in the night sky.

78P/Gehrels 2 Description

78P/Gehrels 2, designated as 90000843 78P/Gehrels 2, is an Encke-type comet. At the moment, 90000843 78P/Gehrels 2 is 2.468 AU (369,192,585 km) from Earth, and it is located in the constellation Sagittarius.

Current position of 78P/Gehrels 2 in Solar System

Earth 78P/Gehrels 2
DateTue, 14 October 2025
Distance from Earth to 78P/Gehrels 22.4679 AU (369,192,585km)
Elongation98°
Angular diameter"
Magnitude17
This section provides an interactive projection of the solar system, illustrating the relative positions of 78P/Gehrels 2, Earth, and the Sun throughout the year. By sliding the image left or right, you can change the day of the year, observing how the positions of 78P/Gehrels 2 and Earth shift in their orbits around the Sun.

Finder Chart for 78P/Gehrels 2

Double-click to unlock the map.
Object name90000843 78P/Gehrels 2
Field of view
Limiting magnitude
90000843 78P/Gehrels 2 coordinates19.99821, -13.76325
Center coordinates19.99821, -13.76325

Annual motion of 78P/Gehrels 2

Time
DateWed, 15 October 2025
Twighlight start17:57
Twighlight end03:46
Twighlight duration10h 49m
Rise12:16
Set22:48
Elevation at transit39°
Transit time17:32
Equatorial coordinatesRA: 20h 00m 30s", Dec: -13° 46' 40s
Magnitude17
ConstellationSagittarius
The graph illustrates the annual visibility pattern of a 78P/Gehrels 2, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the 78P/Gehrels 2 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.

Astrometric & Physical Parameters of 90000843 78P/Gehrels 2

Coordinates & Visibility

Right Ascension19.99821°
Declination-13.76325°
Magnitude17
ConstellationSagittarius
Elevation37.6°
Azimuth164.8°

Acknowledgments

We acknowledge NASA's Jet Propulsion Laboratory (JPL) for providing essential data on asteroids and comets through their Small-Body Database (SBDB) and Center for Near-Earth Object Studies (CNEOS). Their continuous efforts in tracking and cataloging these celestial bodies make it possible to offer accurate and up-to-date information on their positions, orbits, and physical characteristics.