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Sky-Tonight.com / Double Stars / 04549+1009 Star System
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Observation Settings

Or select it on the map:
This Earth map fragment is intended to illustrate celestial motion across the sky, emphasizing both bearing and elevational perspectives. The map's center point corresponds to the transit, showcasing celestial objects at their highest point, while elevation gradually decreases towards the map edges. This dynamic representation offers insights into the changing positions of celestial bodies with a focus on their bearing and elevational trajectories.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Double Star 04549+1009 Observation Details

04549+1009

04549+1009 Daily Motion

04549+1009 will rise at 22:40, during twilight, and will ascend to 56° by the time twilight ends at 03:42.
04549+1009 will be visible until April, 13, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.

04549+1009 Visibility Timetable on September 03

04549+1009 Rise and Set Timetable

TimeElevation
Moon Rise, 75.5% illuminated14:44-31°
Astrosession begin19:05-36°
04549+1009 rise22:40
Moon Set23:5715°
Astrosession end03:0951°
Civil sunrise04:1360°
Sunrise04:4162°
04549+1009 transit05:1063°

Track 04549+1009 Position Throughout the Night

← Wed, 3 September 2025 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 04549+1009 changing position in the night sky.

Where is 04549+1009 right now?

04549+1009 is located in the constellation Orion, at right ascension 04h 54m 53s" and declination 10° 09' 02s. At the current time, it is below the horizon and not visible from your location.

04549+1009 Star System Description

04549+1009 is Triple Star System located in constellation Orion at coordinates RA: 04h 54m 53s", Dec: 10° 09' 02s.
The primary component has a magnitude of 4.66, while the secondary component has a magnitude of 8.95. They are separated by 2.9 arcminutes at a position angle of 248 degrees. The brightness difference between the two components is 4.29 magnitudes, with the primary component being approximately 52 times brighter than the secondary.
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.

Technical Details of Star System 04549+1009

Property Value
Star System Identifier 04549+1009
System Type Triple Star System
Primary Star 7 Ori
Right Ascension (RA) 4.91492 (04h 54m 53s")
Declination (Dec) 10.15081 (10° 09' 02s)
Magnitude (Primary) 4.66
Magnitude (Secondary) 8.95
Spectral Type (Primary/Secondary) A0V
Separation (Arcseconds) 171.8
Position Angle 248°
Discovery Year 1887
Last Observed 2014
Primary Proper Motion (Ra, Dec) +042-129
Secondary Proper Motion (Ra, Dec) +002-011
Number of Observations 20

04549+1009 Components

ComponentMagnitudeSeparation (arcseconds)Position Angle
AB8.95171.8248
AC12.733.14

The data presented in this table is sourced from the Washington Double Star (WDS) Catalog, a comprehensive repository of double and multiple star system information maintained by the U.S. Naval Observatory. We thank the WDS team for their continued efforts in providing accurate and detailed astronomical data.

Finder Chart for 7 Ori

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Object name04549+1009
Field of view
Limiting magnitude
04549+1009 coordinates4.91492, 10.15081
Center coordinates4.91492, 10.15081

04549+1009 Passage Through Night

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Current position of 04549+1009

Time22:39
Latitude37.3541
Longitude-121.955
04549+1009 elevation-0°
04549+1009 Azimuth-77°
Here you can see the current position of the 04549+1009 on the map, as well as its positions for rise and set. This tool allows you to track the 04549+1009's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of 04549+1009

Time
DateThu, 4 September 2025
Twighlight start19:03
Twighlight end03:08
Twighlight duration8h 5m
Rise22:36
Set11:37
Elevation at transit63°
Transit time05:06
Equatorial coordinatesRA: 04h 54m 53s", Dec: 10° 09' 02s
Magnitude5
ConstellationOrion
The graph illustrates the annual visibility pattern of a 04549+1009, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the 04549+1009 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.

Astrometric & Physical Parameters of 04549+1009

Coordinates & Visibility

Right Ascension4.91492°
Declination10.15081°
Magnitude4.66
ConstellationOrion
Elevation-0.2°
Azimuth-77°