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Observation Settings

Or select it on the map:
This Earth map lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Sun Today — Position, Rise and Set

Sun Events Timetable

Sunset/Sunrise17:3304:41
Civil Twilight18:0104:13
Nautical Twilight18:3203:41
Astronomical Night19:0503:09
Elevation at transit60°
Transit time11:07
Distance to Earth1.0089 AU (150,929,292 km)

Sun

Last update: 2 September 2026 at 10:00

Current Sunspot and Flare Activity

The Sun currently displays 3 active sunspot regions visible from Earth, varying in size and magnetic complexity. This includes 1 newly detected regions (4523) in the past 24 hours.
The largest sunspot is AR 4521, classified as Hsx, covering 80 millionths of the solar hemisphere (MSH), and containing 1 spot.
No significant flares detected today. Data current as of 29 June 2026 at 05:01.

Recent Sunspots

4523

Sunspot region

Spot count:
2
Area:
50
Coordinates:
N10E49
Class:
Hax
Magnetic class:
A
AR 4523 is a Hax-class group first observed on 31 August 2026. It covers 50 MSH and contains 2 individual spots.
View detailed sunspot data

View detailed sunspot data

Real-Time Solar Imaging

The data used in these images are provided by the Solar Dynamics Observatory (SDO), a NASA mission that studies solar variability and its effects on Earth. Its AIA and HMI instruments provide high-resolution, real-time images in multiple wavelengths for studying solar activity and space weather. We thank the SDO team and NASA for making these data publicly available.

Magnetogram

HMI magnetograms show the strength and direction of the magnetic field on the solar surface. Images from the HMI instrument aboard the Solar Dynamics Observatory (SDO) reveal complex magnetic structures, sunspots and active regions.

Intensitygram

HMI intensitygrams show the solar surface in visible light, highlighting sunspots, granulation and solar faculae. They provide a detailed view of the photosphere and make it possible to follow sunspot development and movement.

Solar Magnetism: Coronal Loop Dynamics

These 171 Å images highlight the solar corona and upper transition region. AIA images from the Solar Dynamics Observatory (SDO) reveal the outer atmosphere and its magnetic field lines, especially the million-degree plasma loops above the solar surface.

Active Regions, Flares and Coronal Holes

AIA 193 Å images show the hot corona, active regions, solar flares and coronal holes. This wavelength is especially useful for observing high-temperature plasma and regions where the solar wind escapes into space.

Solar Passage Through the Day

Double-click to unlock the map.

Current Sun position

Time10:07
Latitude37.3541
Longitude-121.955
Elevation57°
Azimuth152°

Yearly Sunlight Dynamics

Time

Sun Properties

Date2 September 2026
Twilight start18:32
Twilight end03:41
Astronomical observing duration9h 9m
Elevation at transit60°
Transit time11:07
Distance to Earth1.0089 AU (150,929,292 km)
Equatorial coordinates at midnightRA: 10h 48m 38s", Dec: 07° 33' 55s
ConstellationLeo

Last and Upcoming Solar Eclipse

12 August 2026

Total Solar Eclipse

Global
100%
Local
-
Total Solar Eclipse 2026-08-12
GlobalFrom your location
Penumbra06:36-10:58Not visible
Umbra07:59-09:36Not visible
See details

6 February 2027

Annular Solar Eclipse

Global
86%
Local
-
Annular Solar Eclipse 2027-02-06
GlobalFrom your location
Penumbra03:59-10:02Not visible
Antumbra05:05-08:57Not visible
See details

Last and Upcoming Lunar Eclipse

28 August 2026

Partial Lunar Eclipse

Global
96.9%
Local
96.9%
Partial Lunar Eclipse 2026-08-28
GlobalFrom your location
Penumbral16:26-22:0217:35-22:02
Partial17:35-20:5417:35-20:53
Total--

20 February 2027

Penumbral Lunar Eclipse

Global
96.4%
Local
-
Penumbral Lunar Eclipse 2027-02-20
GlobalFrom your location
Penumbral12:14-16:14Not visible
Partial-Not visible
Total-Not visible

Aurora Activity

Current Aurora Activity

North

South

Kp index: . Very quiet geomagnetic activity
Aurora probability at your location: 0%
View aurora details

Astrometric and Physical Parameters of Sun

Coordinates and Visibility

Right Ascension10.81073°
Declination7.56536°
Magnitude-26.7
ConstellationLeo
Elevation57.1°
Azimuth151.2°

Basic Properties

Mass, kg1.98841E+30
Mean density, g/cm³1.408

Rotation

Sidereal rotation period, days25.38

Surface and Atmosphere

Surface gravity, m/s²274.0 m/s^2
Escape velocity, km/s617.7
Mean temperature, K5772

Data Acknowledgment

Solar-system physical and orbital parameters are provided by the Solar System OpenData API , maintained by Le Système Solaire. We thank its contributors for making these open data available.