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Sky-Tonight.com / Brightest Stars / Sadr
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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

Sadr Position and Visibility Tonight

Sadr

Where is Sadr right now?

Sadr is located in the constellation Cygnus. Although Sadr is currently 36° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:37 local time. At that moment, Sadr will be 64° above the horizon toward the north-east.

Sadr visibility on 2026-08-31

Sadr Visible from sunset until sunrise

Sadr rise and set timetable

TimeElevation
Sadr rise12:12
Sunset17:3852°
Civil sunset18:0658°
Twilight start18:3764°
Moonrise, 91.3% illuminated 18:4866°
Astronomical observing session begins19:1070°
Sadr transit20:5287°
Astronomical observing session ends03:0621°
Twilight end03:3915°
Civil sunrise04:1011°
Sunrise04:387°
Sadr set05:31
Moonset08:20-12°

Track Sadr Position Throughout the Night

← 31 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe Sadr changing position in the night sky.

Sadr - Yellow Supergiant Star

Sadr is the central star in the Northern Cross asterism and the thirty-ninth-brightest star in the night sky. It is a yellow supergiant star located about 1,800 light-years away from Earth.

Sadr has an apparent magnitude of 2.23 and is one of the most prominent stars in the summer sky in the Northern Hemisphere.

Finder Chart for Sadr

Double-click to unlock the map.
Object nameSadr
Field of view
Limiting magnitude
Sadr coordinates20.370473, 40.256679
Center coordinates20.370473, 40.256679

Sadr Passage Through Night

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Current position of Sadr

Time16:10
Latitude37.3541
Longitude-121.955
Elevation36°
Azimuth63°
Here you can see the current position of Sadr on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

Annual motion of Sadr


Sadr will remain visible until January 15, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateTue, 1 September 2026
Twilight start19:08
Twilight end03:04
Twilight duration8h 56m
Rise12:08
Set05:28
Elevation at transit87°
Transit time20:48
Equatorial coordinatesRA: 20h 22m 13s", Dec: 40° 15' 24s
Magnitude2
ConstellationCygnus
The graph illustrates the annual visibility pattern of Sadr, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also view detailed visibility information in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of Sadr

Coordinates and Visibility

Right Ascension20.370473°
Declination40.256679°
Magnitude2.23
ConstellationCygnus
Elevation36.3°
Azimuth63.4°