List of extremes in the sky

This article describes some extremes in the sky as a textual addition to the list of star extremes page.wikipedia
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List of star extremes

most extreme stars
This article describes some extremes in the sky as a textual addition to the list of star extremes page.

Solar System

outer Solar Systeminner Solar Systemouter planets

Sirius

Sirius BSirius superclusterDog Star
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Absolute magnitude

Hbolometric magnitudeabsolute magnitude (H)

Precession

precessgyroscopic precessionprecessing
Due to precession this will change over the centuries, by AD 13800, Vega will be only 4 degrees from the North Pole, at the same time Canopus will be 10 degrees from the South pole.

Vega

Alpha Lyrae2828Botercadent
Due to precession this will change over the centuries, by AD 13800, Vega will be only 4 degrees from the North Pole, at the same time Canopus will be 10 degrees from the South pole.

Proper motion

proper motionsproper-motionhigh proper motion star
Moreover, due to proper motion some nearby stars like Arcturus or Alpha Centauri will be displaced several degrees.

Arcturus

ArcturiansArcturianAlpha Boo
Moreover, due to proper motion some nearby stars like Arcturus or Alpha Centauri will be displaced several degrees.

Alpha Centauri

Alpha Centauri BAlpha Centauri Aα Centauri
Moreover, due to proper motion some nearby stars like Arcturus or Alpha Centauri will be displaced several degrees.

Achernar

AchenarAchernar ThreeAlpha Eridani
At BC 3400, Achernar was only 8 degrees from the South Pole.

Capella

AlhaiotAlpha Aurigaealpha Aurigae (Capella)
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Pollux (star)

PolluxBeta Geminorumβ Gem
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Castor (star)

CastorCastor Aα Gem
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Regulus

Alpha LeonisRegulus Astar
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Procyon

Procyon BProcyon ACanis minor
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Epsilon Canis Majoris

Adharaε CMaε Canis Majoris
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Canopus

Alpha Carinaeα Carinaea first magnitude star
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Rigel

Beta Orionisβ Ori (Rigel)β Orionis
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.

Betelgeuse

Alpha OrionisBételgeuseα Ori
Within a circle of 60 degrees radius around a point in Monoceros at RA 6:30, DE 5ºS, 11 stars of magnitude +1.6 or brighter occur: Capella, Pollux, Castor, Regulus, Procyon, Sirius, Adhara, Canopus, Rigel, Betelgeuse and Aldebaran.