The AsterNym star registry
Sadr
Sadr: the yellow-white star of Cygnus
yellow-white · Cygnus · γ Cyg
Sadr is a yellow-white star, a near cousin of our own Sun's colour in the constellation Cygnus, one of the few thousand stars bright enough to carry an officially recognised name. On a dark, clear night you can find it with your own eyes.
Most stars in the sky are anonymous points of light. Sadr is not — it has held a name across generations of sky-watchers, which makes it a rare thing to attach a name of your own to.
Real star · Personal dedication · Recorded in the AsterNym registry
See what a dedicated page looks like — preview
Sadr at a glance
- Constellation
- Cygnus
- Other name
- γ Cyg
- Catalogue number
- HIP 100453
- Distance
- ≈ 1,800 light-years
- Brightness
- Magnitude 2.23 naked-eye
- Star type
- F8 Ib
- Colour
- yellow-white
- Best seen from
- The Northern Hemisphere and lower southern latitudes
- Right ascension
- 20h 22m 14s
- Declination
- +40° 15′ 24″
Coordinates are J2000 epoch, checkable against any astronomical source or planetarium app.
What could a Sadr dedication represent?
Sadr is especially meaningful for someone who:
- · Deserves something older than any gift shop
- · Marks a beginning, an anniversary or a promise
- · Is remembered every time you look up
- · Has a light you want recorded somewhere permanent
Dedication idea
“For the one I think of when I find Cygnus in the sky.”
Where can you see Sadr?
It is easy to see from most of the Northern Hemisphere. It can also appear from lower southern latitudes, but it never rises for observers south of about latitude 50°S.
Sadr belongs to Cygnus.
Dedicate Sadr to someone who matters
A flower fades. A card is eventually put away. A star gives your message a place in the sky.
Your Sadr dedication includes:
- · Your chosen dedication name
- · Your personal message
- · Sadr's real astronomical coordinates
- · A shareable dedication page
- · Its location on the AsterNym Galaxy Map
- · An optional printable certificate and gift presentation
Sadr keeps its established astronomical name. Your dedication is a personal commemorative record within the AsterNym registry.
Frequently asked questions about Sadr
- Is Sadr the brightest star?
- Sadr shines at magnitude 2.23 — visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
- How far away is Sadr?
- Sadr is approximately 1,800 light-years from Earth. The light reaching us tonight began its journey around 1,800 years ago.
- Which constellation contains Sadr?
- Sadr is part of Cygnus.
- Can everyone see Sadr?
- It is easy to see from most of the Northern Hemisphere. It can also appear from lower southern latitudes, but it never rises for observers south of about latitude 50°S.
- Is dedicating Sadr an official astronomical renaming?
- No. Sadr keeps its internationally recognised astronomical name. An AsterNym dedication records your personal name and message in the AsterNym registry without changing the star's scientific identity.