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A Complete Guide to the Solar System and the Night Sky
FAQ
FAQ
public Location: Greenwich, United Kingdom
Timezone: Europe/London
Sunrise: 5:03 
Transit: 12:55 
Sunset: 20:47
wb_twilight   (Astronomical Twilight)   What's Visible Now?

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Solar System Object Locator

Use this form to visualize the position of Solar System objects at given date and time on an interactive sky map.
Time: : UTC

Bright Comets

This page provides a comprehensive list of the bright comets currently visible in the sky. This list is updated with new information several times per day. Comets for which there is data from recent observations reported in the Comet Observation database (COBS) are listed first, in order of decreasing brightness. When data from recent observations is not available, the magnitude provided by the JPL Horizons datasets is used as an estimation of the brightness.

Credits for comet observation data: COBS Comet Observation Database – CC BY-NA-SA 4.0

Visibility from selected location
visibility = visible to the naked eye
stars = binocular, brighter than 10th magnitude
radio_button_checked Current altitude ≥ 30°   radio_button_checked Current altitude < 30°   radio_button_checked Below the horizon

C/2022 E3 (ZTF)   radio_button_checked

C/2022 E3 (ZTF)

C/2022 E3 (ZTF)   radio_button_checked

Magnitude: 17.9 (Predicted - JPL) trending_down
RA: 03h 44m 19s   Decl: -46° 11’ 21”
in Horologium

48P/Johnson   radio_button_checked

48P/Johnson

48P/Johnson   radio_button_checked

Magnitude: 17.9 (Predicted - JPL) trending_up
RA: 15h 47m 39s   Decl: -04° 28’ 53”
in Libra

C/2024 A1 (ATLAS)   radio_button_checked

C/2024 A1 (ATLAS)

C/2024 A1 (ATLAS)   radio_button_checked

Magnitude: 17.9 (Predicted - JPL) trending_flat
RA: 06h 31m 40s   Decl: -36° 13’ 28”
in Columba

30P/Reinmuth   radio_button_checked

30P/Reinmuth

30P/Reinmuth   radio_button_checked

Magnitude: 18.0 (Predicted - JPL) trending_flat
RA: 05h 00m 04s   Decl: +19° 45’ 54”
in Taurus

C/2024 G3 (ATLAS)   radio_button_checked

C/2024 G3 (ATLAS)

C/2024 G3 (ATLAS)   radio_button_checked

Magnitude: 18.0 (Predicted - JPL) trending_up
RA: 15h 54m 35s   Decl: -80° 23’ 44”
in Apus

C/2014 UN271 (Bernardinelli-Bernstein)   radio_button_checked

C/2014 UN271 (Bernardinelli-Bernstein)

C/2014 UN271 (Bernardinelli-Bernstein)   radio_button_checked

Magnitude: 18.1 (Predicted - JPL) trending_flat
RA: 03h 34m 00s   Decl: -61° 25’ 03”
in Reticulum

219P/LINEAR   radio_button_checked

219P/LINEAR

219P/LINEAR   radio_button_checked

Magnitude: 18.1 (Predicted - JPL) trending_flat
RA: 01h 14m 48s   Decl: +14° 22’ 28”
in Pisces

C/2022 U3 (Bok)   radio_button_checked

C/2022 U3 (Bok)

C/2022 U3 (Bok)   radio_button_checked

Magnitude: 18.1 (Predicted - JPL) trending_flat
RA: 05h 46m 30s   Decl: +23° 28’ 08”
in Taurus

46P/Wirtanen   radio_button_checked

46P/Wirtanen

46P/Wirtanen   radio_button_checked

Magnitude: 18.2 (Predicted - JPL) trending_flat
RA: 04h 27m 01s   Decl: +21° 17’ 52”
in Taurus

117P/Helin-Roman-Alu   radio_button_checked

117P/Helin-Roman-Alu

117P/Helin-Roman-Alu   radio_button_checked

Magnitude: 18.4 (Predicted - JPL) trending_flat
RA: 02h 24m 36s   Decl: +10° 59’ 55”
in Aries

146P/Shoemaker-LINEAR   radio_button_checked

146P/Shoemaker-LINEAR

146P/Shoemaker-LINEAR   radio_button_checked

Magnitude: 18.4 (Predicted - JPL) trending_up
RA: 00h 13m 02s   Decl: -21° 52’ 02”
in Cetus

C/2020 F2 (ATLAS)   radio_button_checked

C/2020 F2 (ATLAS)

C/2020 F2 (ATLAS)   radio_button_checked

Magnitude: 18.4 (Predicted - JPL) trending_down
RA: 11h 22m 21s   Decl: +22° 20’ 10”
in Leo

C/2020 R7 (ATLAS)   radio_button_checked

C/2020 R7 (ATLAS)

C/2020 R7 (ATLAS)   radio_button_checked

Magnitude: 18.5 (Predicted - JPL) trending_flat
RA: 15h 07m 40s   Decl: +59° 07’ 13”
in Draco

C/2024 B1 (Lemmon)   radio_button_checked

C/2024 B1 (Lemmon)

C/2024 B1 (Lemmon)   radio_button_checked

Magnitude: 18.5 (Predicted - JPL) trending_up
RA: 04h 43m 49s   Decl: +19° 17’ 46”
in Taurus

95P/Chiron   radio_button_checked

95P/Chiron

95P/Chiron   radio_button_checked

Magnitude: 18.7 (Predicted - JPL) trending_flat
RA: 01h 17m 04s   Decl: +09° 22’ 17”
in Pisces

C/2024 G2 (ATLAS)   radio_button_checked

C/2024 G2 (ATLAS)

C/2024 G2 (ATLAS)   radio_button_checked

Magnitude: 18.7 (Predicted - JPL) trending_up
RA: 11h 33m 14s   Decl: -70° 40’ 03”
in Musca

240P/NEAT   radio_button_checked

240P/NEAT

240P/NEAT   radio_button_checked

Magnitude: 18.9 (Predicted - JPL) trending_up
RA: 21h 25m 04s   Decl: -34° 35’ 02”
in Microscopium

C/2023 U1 (Fuls)   radio_button_checked

C/2023 U1 (Fuls)

C/2023 U1 (Fuls)   radio_button_checked

Magnitude: 18.9 (Predicted - JPL) trending_flat
RA: 05h 58m 48s   Decl: -23° 14’ 26”
in Lepus

C/2020 Y2 (ATLAS)   radio_button_checked

C/2020 Y2 (ATLAS)

C/2020 Y2 (ATLAS)   radio_button_checked

Magnitude: 19.0 (Predicted - JPL) trending_down
RA: 01h 50m 24s   Decl: +12° 46’ 26”
in Aries

199P/Shoemaker   radio_button_checked

199P/Shoemaker

199P/Shoemaker   radio_button_checked

Magnitude: 19.0 (Predicted - JPL) trending_down
RA: 00h 31m 41s   Decl: -19° 55’ 29”
in Cetus
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