Sky Tonight
ST
Location settings
Santa Clara, US
37.4°/-122°
GMT -9
Waxing01:44 - 03:58
⌕
Go to My SkyLog in
☾
☰
Sky-Tonight.com / Nebulae and Deep-Sky Objects / M73
  • 🌐 EN
    ENDEESFRPT中文
  • Tonight
    • Brightest Planets and Stars Tonight
    • Milky Way Tonight
  • Solar System
    • Sun
    • Real-Time Sun Map
    • Sunspots Activity
    • Aurora Activity
    • Moon
    • Interactive Lunar Map
    • Planets
    • Mercury
    • Venus
    • Mars
    • Jupiter
    • Saturn
    • Satellite Flyovers
    • ISS
    • Close Approaches
  • Small Bodies
    • Asteroids
    • Comets
    • Recently Updated Comets
  • Stars
    • Brightest Stars
  • Meteor Showers
    • Active Meteor Showers
    • Major Meteor Showers
  • Solar Eclipses
    • Future Solar Eclipses
    • Past Solar Eclipses
  • Lunar Eclipses
    • Future Lunar Eclipses
    • Past Lunar Eclipses
  • Deep Sky Objects
    • Seasonal Nebulae
    • Messier Objects
    • Nebulae
    • Star Clusters
    • Galaxies
  • Double Stars
    • Naked-eye
    • Binocular
    • Physical pairs
    • Color-contrasting
    • Triple systems
    • Multiple systems
  • Constellations
    • Visible Tonight
    • Seasonal
    • Ecliptic
    • All 88 Constellations
  • Maps
    • Mars Map
    • Mercury Map
    • Earth
    • Cloud Cover Map
  • Contact Us
    • Feedback

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

M73 Position and Visibility Tonight

M73

Where is M73 right now?

M73 is located in the constellation Aquarius. It is currently below the horizon and is not visible from your location.
Open the interactive guide to M73’s position and path tonight

M73 visibility on 2026-09-21

M73 Visible from sunset until early morning

M73 rise and set timetable

TimeElevation
Moonrise, 60.8% illuminated 14:04-8°
M73 rise14:46
Sunset17:0624°
Civil sunset17:3328°
Twilight start (−12°)18:0432°
Astronomical observing session begins18:3436°
M73 transit20:0640°
Moonset23:4019°
M73 set01:26
Astronomical observing session ends03:27-24°

Track M73 position throughout the night

← 21 September 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe M73 changing position in the night sky.

M73 - Asterism

M73 is an asterism located in the constellation Aquarius. It was discovered by Charles Messier in 1780. The asterism consists of four stars that form a small Y-shaped pattern.

M73 spans about 1.5 light-years across and contains no physical connection between its stars. The asterism is approximately 2,500 light-years away from Earth and has an apparent magnitude of 9.0, making it visible with a small telescope.

Finder Chart for M73

Double-click to unlock the map.
Object nameM73
Field of view
Limiting magnitude
M73 coordinates20.98221, -12.6355
Center coordinates20.98221, -12.6355

M73 Passage Through Night

Double-click to unlock the map.

Current position of M73

Time01:44
Latitude37.3541
Longitude-121.955
Elevation-4°
Azimuth257°
Here you can see the current position of M73 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.

When Is M73 Visible Throughout the Year?

M73 will remain visible until December 16, when it moves too close to the Sun and temporarily disappears from the night sky. Time
DateTue, 22 September 2026
Astronomical observing session begins18:29
Astronomical observing session ends03:21
Astronomical observing duration9h 53m
Rise14:42
Set01:22
Elevation at transit40°
Transit time20:02
Equatorial coordinatesRA: 20h 58m 55s", Dec: -12° 38' 07s
Magnitude9
ConstellationAquarius
The graph illustrates the annual visibility pattern of M73, 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 see when M73 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of M73

Coordinates and Visibility

Right Ascension20h 58m 56s
Declination-12° 38′ 08″
Magnitude8.9
ConstellationAquarius
Elevation-3.5°
Azimuth256.8°

Data Credits

The deep-sky information on this page comes from the OpenNGC project developed by Matteo Verga. OpenNGC provides detailed catalog data for nebulae, galaxies, clusters and other deep-sky objects.

For details or contributions, visit the official repository: OpenNGC GitHub.