Highlights

• The Sun is in Taurus, the Moon is Waning Gibbous in Sagittarius
• T CrB: magnitude 10.134 ± 0.005 [2025-05-16 11:10:08 UTC, CCD/CV, IDG/AAVSO]
• The Sun and Uranus are in conjunction, 0° 37’ 21” separation, decreasing
• Comet C/2025 F2 (SWAN): magnitude 8.97 in Orion
• Comet C/2023 A3 (Tsuchinshan-ATLAS): magnitude 11.5 in Vulpecula
• Comet 29P/Schwassmann-Wachmann: magnitude 13.4 in Leo
• Next NEO approach: Asteroid (NEO) 2025 KA, May 17 2025 at 14:11 UTC, 1,619,752 km, 4.21 lunar distances
• Asteroid 3 Juno is close to opposition
• Asteroid 9 Metis is close to opposition
• Asteroid 349 Dembowska (1892 T) 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	03h 37m 37s	+19° 24’ 55”	1,897.5”	-26.72 trending_flat	Taurus	map my_location
radio_button_checked Moon	19h 22m 43s	-27° 23’ 37”	1,821.0”	-11.25 trending_down	Sagittarius	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	02h 41m 25s	+14° 00’ 47”	5.5”	-0.90 trending_up	Aries	map my_location
radio_button_checked Venus	00h 44m 51s	+03° 40’ 53”	28.7”	-4.58 trending_down	Pisces	map my_location
radio_button_checked Mars	09h 05m 47s	+18° 23’ 47”	6.0”	1.14 trending_flat	Cancer	map my_location
radio_button_checked Jupiter	05h 37m 17s	+23° 07’ 39”	32.1”	-1.94 trending_flat	Taurus	map my_location
radio_button_checked Saturn	00h 00m 58s	-02° 07’ 49”	15.9”	1.13 trending_flat	Pisces	map my_location
radio_button_checked Uranus	03h 40m 08s	+19° 20’ 18”	3.4”	5.85 trending_flat	Taurus	map my_location
radio_button_checked Neptune	00h 07m 44s	-00° 33’ 45”	2.2”	7.80 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
May 17	11:39	Io	Begin Transit
May 17	12:17	Io	Begin Shadow Transit
May 17	13:53	Io	End Transit
May 17	14:31	Io	End Shadow Transit
May 18	08:49	Io	Begin Occultation
May 18	11:40	Io	End Eclipse
May 18	14:35	Europa	Begin Transit
May 18	15:48	Europa	Begin Shadow Transit
May 18	17:13	Europa	End Transit
May 18	18:27	Europa	End Shadow Transit
May 19	03:05	Ganimede	Begin Occultation
May 19	06:09	Io	Begin Transit
May 19	06:46	Io	Begin Shadow Transit
May 19	08:19	Ganimede	End Eclipse
May 19	08:23	Io	End Transit
May 19	09:00	Io	End Shadow Transit
May 20	03:19	Io	Begin Occultation
May 20	06:09	Io	End Eclipse
May 20	09:41	Europa	Begin Occultation
May 20	13:32	Europa	End Eclipse
May 21	00:40	Io	Begin Transit
May 21	01:14	Io	Begin Shadow Transit
May 21	02:54	Io	End Transit
May 21	03:29	Io	End Shadow Transit
May 21	21:50	Io	Begin Occultation
May 22	00:37	Io	End Eclipse
May 22	03:59	Europa	Begin Transit
May 22	05:05	Europa	Begin Shadow Transit
May 22	06:38	Europa	End Transit
May 22	07:45	Europa	End Shadow Transit
May 22	17:25	Ganimede	Begin Transit
May 22	19:10	Io	Begin Transit
May 22	19:37	Ganimede	Begin Shadow Transit
May 22	19:43	Io	Begin Shadow Transit
May 22	19:43	Unknown	Unknown
May 22	20:13	Ganimede	End Transit
May 22	21:24	Io	End Transit
May 22	21:58	Io	End Shadow Transit
May 22	21:58	Unknown	Unknown
May 22	22:26	Ganimede	End Shadow Transit
May 23	16:20	Io	Begin Occultation
May 23	19:06	Io	End Eclipse
May 23	23:06	Europa	Begin Occultation
May 24	02:51	Europa	End Eclipse
May 24	13:41	Io	Begin Transit
May 24	14:12	Io	Begin Shadow Transit
May 24	15:55	Io	End Transit
May 24	16:26	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 243 comets).

	Comet	R.A.	Decl.	Magnitude (COBS)Mag Obs	Magnitude (JPL)Mag Pred		ConstellationConst	Charts
radio_button_checked	C/2025 F2 (SWAN)	05h 06m 28s	-00° 34’ 14”	-	8.97	trending_down	Orion Ori	map my_location
radio_button_checked	C/2023 A3 (Tsuchinshan-ATLAS)	20h 01m 01s	+26° 30’ 18”	11.5	14.35	trending_down	Vulpecula Vul	map my_location
radio_button_checked	29P/Schwassmann-Wachmann	09h 40m 31s	+10° 24’ 54”	13.4	17.67	trending_flat	Leo Leo	map my_location
radio_button_checked	C/2021 G2 (Atlas)	15h 18m 30s	-05° 44’ 57”	13.5	14.86	trending_flat	Libra Lib	map my_location
radio_button_checked	P/2010 H2 (Vales)	13h 10m 40s	+05° 26’ 02”	-	13.69	trending_down	Virgo Vir	map my_location
radio_button_checked	C/2023 C2 (ATLAS)	23h 16m 44s	+31° 32’ 20”	14.2	16.02	trending_flat	Pegasus Peg	map my_location
radio_button_checked	C/2024 J2 (Wierzchos)	01h 25m 25s	+12° 49’ 19”	-	14.61	trending_down	Pisces Psc	map my_location
radio_button_checked	C/2024 L5 (ATLAS)	11h 34m 35s	-11° 50’ 34”	15.3	16.05	trending_down	Crater Crt	map my_location
radio_button_checked	C/2022 E2 (ATLAS)	01h 51m 49s	+49° 21’ 07”	-	15.36	trending_flat	Perseus Per	map my_location
radio_button_checked	C/2022 N2 (PANSTARRS)	01h 40m 14s	+14° 38’ 47”	-	15.49	trending_flat	Pisces Psc	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	14h 38m 41s	-03° 58’ 14”	5.80	trending_down	Virgo	map my_location
radio_button_checked	1 Ceres	00h 15m 24s	-08° 20’ 18”	9.29	trending_flat	Cetus	map my_location
radio_button_checked	7 Iris	03h 57m 05s	+21° 25’ 27”	9.55	trending_up	Taurus	map my_location
radio_button_checked	9 Metis	15h 00m 55s	-14° 07’ 07”	9.86	trending_down	Libra	map my_location
radio_button_checked	6 Hebe	21h 53m 25s	-07° 20’ 19”	9.95	trending_up	Aquarius	map my_location
radio_button_checked	3 Juno	15h 41m 17s	-02° 26’ 54”	9.99	trending_flat	Serpens	map my_location
radio_button_checked	2 Pallas	21h 05m 26s	+14° 30’ 02”	10.27	trending_up	Delphinus	map my_location
radio_button_checked	349 Dembowska	15h 07m 32s	-21° 54’ 31”	10.35	trending_down	Libra	map my_location
radio_button_checked	15 Eunomia	07h 09m 27s	+20° 40’ 45”	10.71	trending_down	Gemini	map my_location
radio_button_checked	5 Astraea	17h 19m 49s	-15° 13’ 16”	10.89	trending_up	Serpens	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	Daytime Arietids	7 Jun	02h 53m	+24°	50	medium	1566 Icarus ?	map