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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

217P/LINEAR   radio_button_checked

217P/LINEAR

217P/LINEAR   radio_button_checked

Magnitude: 20.0 (Predicted - JPL) trending_up
RA: 16h 19m 26s   Decl: -05° 32’ 36”
in Ophiucus

103P/Hartley   radio_button_checked

103P/Hartley

103P/Hartley   radio_button_checked

Magnitude: 20.0 (Predicted - JPL) trending_down
RA: 09h 06m 49s   Decl: +04° 08’ 42”
in Hydra

276P/Vorobjov   radio_button_checked

276P/Vorobjov

276P/Vorobjov   radio_button_checked

Magnitude: 20.1 (Predicted - JPL) trending_flat
RA: 01h 44m 14s   Decl: +13° 00’ 30”
in Pisces

246P/NEAT   radio_button_checked

246P/NEAT

246P/NEAT   radio_button_checked

Magnitude: 20.2 (Predicted - JPL) trending_flat
RA: 03h 36m 55s   Decl: +14° 11’ 15”
in Taurus

C/2020 J1 (SONEAR)   radio_button_checked

C/2020 J1 (SONEAR)

C/2020 J1 (SONEAR)   radio_button_checked

Magnitude: 20.2 (Predicted - JPL) trending_down
RA: 09h 50m 57s   Decl: +52° 31’ 11”
in Ursa Major

C/2021 E3 (ZTF)   radio_button_checked

C/2021 E3 (ZTF)

C/2021 E3 (ZTF)   radio_button_checked

Magnitude: 20.2 (Predicted - JPL) trending_down
RA: 06h 52m 05s   Decl: +14° 23’ 13”
in Gemini

C/2020 U5 (PANSTARRS)   radio_button_checked

C/2020 U5 (PANSTARRS)

C/2020 U5 (PANSTARRS)   radio_button_checked

Magnitude: 20.3 (Predicted - JPL) trending_flat
RA: 19h 41m 11s   Decl: -02° 58’ 23”
in Aquila

81P/Wild   radio_button_checked

81P/Wild

81P/Wild   radio_button_checked

Magnitude: 20.3 (Predicted - JPL) trending_flat
RA: 22h 05m 57s   Decl: -11° 37’ 21”
in Aquarius

74P/Smirnova-Chernykh   radio_button_checked

74P/Smirnova-Chernykh

74P/Smirnova-Chernykh   radio_button_checked

Magnitude: 20.3 (Predicted - JPL) trending_flat
RA: 03h 09m 32s   Decl: +17° 08’ 04”
in Aries

C/2023 X2 (Lemmon)   radio_button_checked

C/2023 X2 (Lemmon)

C/2023 X2 (Lemmon)   radio_button_checked

Magnitude: 20.3 (Predicted - JPL) trending_flat
RA: 04h 14m 18s   Decl: +26° 19’ 15”
in Taurus

C/2020 O2 (Amaral)   radio_button_checked

C/2020 O2 (Amaral)

C/2020 O2 (Amaral)   radio_button_checked

Magnitude: 20.4 (Predicted - JPL) trending_flat
RA: 21h 29m 07s   Decl: +62° 02’ 46”
in Cepheus

354P/LINEAR   radio_button_checked

354P/LINEAR

354P/LINEAR   radio_button_checked

Magnitude: 20.5 (Predicted - JPL) trending_down
RA: 09h 29m 41s   Decl: +12° 02’ 26”
in Leo

119P/Parker-Hartley   radio_button_checked

119P/Parker-Hartley

119P/Parker-Hartley   radio_button_checked

Magnitude: 20.5 (Predicted - JPL) trending_down
RA: 12h 24m 52s   Decl: +06° 50’ 39”
in Virgo

133P/Elst-Pizarro   radio_button_checked

133P/Elst-Pizarro

133P/Elst-Pizarro   radio_button_checked

Magnitude: 20.6 (Predicted - JPL) trending_up
RA: 21h 11m 44s   Decl: -14° 57’ 55”
in Capricornus

C/2017 T2 (PANSTARRS)   radio_button_checked

C/2017 T2 (PANSTARRS)

C/2017 T2 (PANSTARRS)   radio_button_checked

Magnitude: 20.6 (Predicted - JPL) trending_flat
RA: 19h 32m 32s   Decl: -65° 50’ 29”
in Pavo

C/2022 A2 (PANSTARRS)   radio_button_checked

C/2022 A2 (PANSTARRS)

C/2022 A2 (PANSTARRS)   radio_button_checked

Magnitude: 20.7 (Predicted - JPL) trending_flat
RA: 00h 11m 32s   Decl: -16° 48’ 09”
in Cetus

287P/Christensen   radio_button_checked

287P/Christensen

287P/Christensen   radio_button_checked

Magnitude: 20.7 (Predicted - JPL) trending_flat
RA: 02h 29m 32s   Decl: +01° 55’ 45”
in Cetus

378P/McNaught   radio_button_checked

378P/McNaught

378P/McNaught   radio_button_checked

Magnitude: 20.7 (Predicted - JPL) trending_flat
RA: 04h 01m 44s   Decl: +11° 07’ 27”
in Taurus

78P/Gehrels   radio_button_checked

78P/Gehrels

78P/Gehrels   radio_button_checked

Magnitude: 20.9 (Predicted - JPL) trending_up
RA: 17h 27m 39s   Decl: -17° 32’ 03”
in Ophiucus

44P/Reinmuth   radio_button_checked

44P/Reinmuth

44P/Reinmuth   radio_button_checked

Magnitude: 20.9 (Predicted - JPL) trending_flat
RA: 07h 55m 20s   Decl: +18° 45’ 52”
in Gemini
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