Highlights

• The Sun is in Aries, the Moon is Third Quarter in Capricornus
• T CrB: magnitude 9.928 ± 0.029 [2025-04-21 11:19:19 UTC, CCD/V, SRIC/AAVSO]
• Mercury is in very favorable conditions for morning observations with a solar elongation of 27.4° (sky map)
• Comet C/2025 F2 (SWAN) - SWAN25F: magnitude 9.1 in Andromeda
• Comet C/2021 G2 (Atlas): magnitude 13.5 in Libra
• Comet P/2010 H2 (Vales): magnitude 13.52 in Virgo
• Next NEO approach: Asteroid (NEO) 2025 GD1, Apr 22 2025 at 23:22 UTC, 1,594,344 km, 4.15 lunar distances
• Asteroid 4 Vesta is close to opposition
• Asteroid 192 Nausikaa is close to opposition
• Asteroid 324 Bamberga is close to opposition

Popular Objects

Popular objects during the last 7 days based on the number of visualizations.

Sun and Moon

How the Sun and the Moon look like today.

	R.A.	Decl.	Apparent Diameter	MagnitudeMag	ConstellationConst	Charts
radio_button_checked Sun	01h 58m 53s	+12° 07’ 45”	1,909.2”	-26.73 trending_flat	Aries	map my_location
radio_button_checked Moon	20h 55m 31s	-21° 43’ 52”	1,875.8”	-9.79 trending_down	Capricornus	map

The Planets

Current essential information about the planets. Click each planet to view full details.

Planet	R.A.	Decl.	Diameter	MagnitudeMag	ConstellationConst	Charts
radio_button_checked Mercury	00h 20m 52s	-00° 27’ 36”	7.9”	0.42 trending_up	Pisces	map my_location
radio_button_checked Venus	23h 41m 04s	+00° 58’ 50”	42.4”	-4.78 trending_flat	Pisces	map my_location
radio_button_checked Mars	08h 17m 02s	+21° 56’ 57”	7.0”	0.73 trending_down	Cancer	map my_location
radio_button_checked Jupiter	05h 14m 43s	+22° 46’ 09”	33.6”	-2.01 trending_down	Taurus	map my_location
radio_button_checked Saturn	23h 51m 41s	-03° 03’ 13”	15.4”	1.17 trending_flat	Pisces	map my_location
radio_button_checked Uranus	03h 34m 08s	+18° 59’ 44”	3.4”	5.84 trending_flat	Taurus	map my_location
radio_button_checked Neptune	00h 04m 57s	-00° 50’ 51”	2.2”	7.82 trending_flat	Pisces	map my_location

Jupiter Moons

Position of the Galilean satellites of Jupiter. A dedicated tool is available, with more advanced features.

List of upcoming phenomena of Jupiter's satellites:

Date	Local Time	Satellite	Event
Apr 21	22:21	Europa	Begin Occultation
Apr 21	22:30	Io	End Eclipse
Apr 22	03:02	Europa	End Eclipse
Apr 22	16:34	Io	Begin Transit
Apr 22	17:33	Io	Begin Shadow Transit
Apr 22	18:48	Io	End Transit
Apr 22	19:48	Io	End Shadow Transit

Saturn Moons & Rings

Inclination of the rings of Saturn and positions of major satellites. A dedicated tool is available, with more advanced features.

Apparent Planet Sizes

Comparison between the apparent size of the planets, measured in seconds of a degree, as they appear today.

Credits for the planet images: NASA-APL - NASA.

Brightest Comets

List of the 10 brightest comets (open the full list of 241 comets).

	Comet	R.A.	Decl.	Magnitude (COBS)Mag Obs	Magnitude (JPL)Mag Pred		ConstellationConst	Charts
radio_button_checked	C/2025 F2 (SWAN)	01h 31m 12s	+35° 01’ 57”	9.1	7.22	trending_up	Andromeda And	map my_location
radio_button_checked	C/2021 G2 (Atlas)	15h 28m 54s	-09° 10’ 27”	13.5	14.81	trending_flat	Libra Lib	map my_location
radio_button_checked	P/2010 H2 (Vales)	13h 25m 22s	+06° 24’ 43”	-	13.52	trending_flat	Virgo Vir	map my_location
radio_button_checked	C/2024 J2 (Wierzchos)	00h 36m 59s	+17° 00’ 55”	-	14.25	trending_down	Pisces Psc	map my_location
radio_button_checked	C/2023 A3 (Tsuchinshan-ATLAS)	20h 21m 00s	+22° 24’ 15”	14.3	14.21	trending_down	Vulpecula Vul	map my_location
radio_button_checked	29P/Schwassmann-Wachmann	09h 37m 08s	+10° 44’ 05”	14.7	17.52	trending_flat	Leo Leo	map my_location
radio_button_checked	C/2024 G3 (ATLAS)	01h 30m 42s	-45° 46’ 09”	-	14.74	trending_down	Phoenix Phe	map my_location
radio_button_checked	C/2023 C2 (ATLAS)	22h 50m 35s	+22° 55’ 08”	15.0	15.92	trending_down	Pegasus Peg	map my_location
radio_button_checked	21P/Giacobini-Zinner	02h 20m 56s	+06° 36’ 31”	-	15.07	trending_down	Cetus Cet	map my_location
radio_button_checked	C/2024 A1 (ATLAS)	06h 37m 04s	+07° 39’ 46”	15.2	16.22	trending_down	Monoceros Mon	map my_location

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.

Brightest Asteroids

List of the 10 brightest asteroids (open the full list of 78 asteroids and dwarf planets.)

	Asteroid	R.A.	Decl.	MagnitudeMag		ConstellationConst	Charts
radio_button_checked	4 Vesta	15h 02m 32s	-04° 53’ 33”	5.76	trending_up	Libra	map my_location
radio_button_checked	1 Ceres	23h 42m 17s	-11° 05’ 34”	9.31	trending_flat	Aquarius	map my_location
radio_button_checked	7 Iris	02h 50m 54s	+18° 05’ 54”	9.73	trending_up	Aries	map my_location
radio_button_checked	9 Metis	15h 26m 05s	-15° 01’ 28”	10.08	trending_up	Libra	map my_location
radio_button_checked	3 Juno	16h 00m 29s	-04° 36’ 39”	10.19	trending_up	Libra	map my_location
radio_button_checked	6 Hebe	21h 16m 27s	-09° 19’ 32”	10.30	trending_up	Aquarius	map my_location
radio_button_checked	2 Pallas	20h 52m 24s	+11° 36’ 19”	10.44	trending_up	Delphinus	map my_location
radio_button_checked	8 Flora	11h 16m 54s	+13° 33’ 59”	10.46	trending_down	Leo	map my_location
radio_button_checked	15 Eunomia	06h 27m 45s	+22° 28’ 09”	10.54	trending_down	Gemini	map my_location
radio_button_checked	29 Amphitrite	09h 26m 49s	+17° 12’ 54”	10.63	trending_down	Leo	map my_location

Active Meteor Showers

List of the currently active meteor showers.

	Name	Peak	Radiant R.A.	Radiant Decl.	ZHR ⓘ	Rating	Parent Object	Charts
radio_button_checked	Eta Aquariids	6 May	22h 30m	-01°	50	bright	1P/Halley	map
radio_button_checked	Lyrids	22 Apr	18h 06m	+34°	18	bright	C/1861 G1 (Thatcher)	map
radio_button_checked	Pi Puppids	23 Apr	07h 17m	-45°	variable	bright	26P/Grigg-Skjellerup	map