The AsterNym star registry
Segin
Segin: the blue star of Cassiopeia
blue · Cassiopeia · ε Cas
Segin is a blue star in the constellation Cassiopeia, 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. Segin 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
Segin at a glance
- Constellation
- Cassiopeia
- Other name
- ε Cas
- Catalogue number
- HIP 8886
- Distance
- ≈ 440 light-years
- Brightness
- Magnitude 3.35 naked-eye
- Star type
- B3 III
- Colour
- blue
- Best seen from
- The far northern sky
- Right ascension
- 01h 54m 22s
- Declination
- +63° 40′ 12″
Coordinates are J2000 epoch, checkable against any astronomical source or planetarium app.
What could a Segin dedication represent?
Segin 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 Cassiopeia in the sky.”
Where can you see Segin?
It is a deep-northern star: easy from Europe, North America and northern Asia, but it never rises for observers south of about latitude 26°S.
Segin belongs to Cassiopeia.
Dedicate Segin to someone who matters
A flower fades. A card is eventually put away. A star gives your message a place in the sky.
Your Segin dedication includes:
- · Your chosen dedication name
- · Your personal message
- · Segin's real astronomical coordinates
- · A shareable dedication page
- · Its location on the AsterNym Galaxy Map
- · An optional printable certificate and gift presentation
Segin keeps its established astronomical name. Your dedication is a personal commemorative record within the AsterNym registry.
Frequently asked questions about Segin
- Is Segin the brightest star?
- Segin shines at magnitude 3.35 — visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
- How far away is Segin?
- Segin is approximately 440 light-years from Earth. The light reaching us tonight began its journey around 440 years ago.
- Which constellation contains Segin?
- Segin is part of Cassiopeia.
- Can everyone see Segin?
- It is a deep-northern star: easy from Europe, North America and northern Asia, but it never rises for observers south of about latitude 26°S.
- Is dedicating Segin an official astronomical renaming?
- No. Segin 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.