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Sky-Tonight.com / Double stars / 09276-0840 star system
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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

09276-0840 Position and Visibility Tonight

09276-0840

Where is 09276-0840 right now?

09276-0840 is located in the constellation Hydra. It is currently below the horizon and is not visible from your location.
Open the interactive guide to 09276-0840’s position and path tonight

09276-0840 visibility on 2026-09-21

09276-0840 Visible from early morning until sunrise

09276-0840 rise and set timetable

TimeElevation
09276-0840 transit08:3644°
Moonrise, 60.8% illuminated 14:041°
09276-0840 set14:09
Astronomical observing session begins18:34-50°
Moonset23:40-39°
09276-0840 rise03:00
Astronomical observing session ends03:275°
Twilight end (−12°)03:5811°
Civil sunrise04:2817°
Sunrise04:5622°

Track 09276-0840 position throughout the night

← 21 September 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 09276-0840 changing position in the night sky.

Star system description: 09276-0840

System 09276-0840 — triple star system, is located in the constellation Hydra, at coordinates RA: 09h 27m 35s", Dec: -8° 39' 31s.
The primary and secondary magnitudes are 1.98 and 9.70. Their separation is 4.8 arcminutes, at position angle 155°. The magnitude difference is 7.72 magnitudes; the primary is approximately 1224.6 times brighter.
The following technical data come from the Washington Double Star Catalog.

Technical details: 09276-0840

Property Value
System identifier 09276-0840
System type triple star system
Primary star alp Hya
Right ascension (RA) 9.45978 (09h 27m 35s")
Declination (Dec) -8.65869 (-8° 39' 31s)
Primary magnitude 1.98
Secondary magnitude 9.70
Spectral type (primary/secondary) K3II-III
Separation (arcseconds) 285
Position angle 155°
Discovery year 1833
Last observed 2015
Primary proper motion (RA, Dec) -014+033
Secondary proper motion (RA, Dec)
Number of observations 11

Components of 09276-0840

ComponentMagnitudeSeparation (arcseconds)Position angle
AB9.7285155
AC021090

Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.

Finder Chart for 09276-0840

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Object name09276-0840
Field of view
Limiting magnitude
09276-0840 coordinates9.45978, -8.65869
Center coordinates9.45978, -8.65869

09276-0840 Passage Through Night

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Current position of 09276-0840

Time14:27
Latitude37.3541
Longitude-121.955
Elevation-3°
Azimuth262°
Here you can see the current position of 09276-0840 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 09276-0840 Visible Throughout the Year?

09276-0840 will become visible again around October 14 after moving far enough from the Sun. Time
DateMon, 21 September 2026
Astronomical observing session begins18:30
Astronomical observing session ends03:21
Astronomical observing duration9h 50m
Rise03:00
Set14:05
Elevation at transit44°
Transit time08:32
Equatorial coordinatesRA: 09h 27m 35s", Dec: -8° 39' 31s
Magnitude2
ConstellationHydra
The graph illustrates the annual visibility pattern of 09276-0840, 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 09276-0840 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of 09276-0840

Coordinates and Visibility

Right Ascension09h 27m 35s
Declination-8° 39′ 31″
Magnitude1.98
ConstellationHydra
Elevation-3.5°
Azimuth261.8°