By Lymi

Constellations

Learn 40 constellations by their shape, with each one's brightest star and the best month to see it.

Science40 cards

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  • Northern sky

    An unlabelled star chart: 8 stars joined by straight lines on a dark blue night sky.

    Aquila

  • Northern sky

    An unlabelled star chart: 17 stars joined by straight lines on a dark blue night sky.

    Hercules

  • Southern sky

    An unlabelled star chart: 11 stars joined by straight lines on a dark blue night sky.

    Lepus

  • Southern sky

    An unlabelled star chart: 27 stars joined by straight lines on a dark blue night sky.

    Eridanus

  • Zodiac

    An unlabelled star chart: 9 stars joined by straight lines on a dark blue night sky.

    Leo

What’s inside

See all 40 cards

Every section is open, so any card can come up in review.

  1. Section 1: Northern sky

    16 cards
  2. Section 2: Southern sky

    12 cards
  3. Section 3: Zodiac

    12 cards
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All 40 cards

In the order you learn them, one section at a time.

1Northern sky16 cards

Ursa MajorAn unlabelled star chart: 20 stars joined by straight lines on a dark blue night sky.
Brightest star: Alioth. Best seen on April evenings; its Big Dipper never sets from mid-northern latitudes.
Ursa MinorAn unlabelled star chart: 7 stars joined by straight lines on a dark blue night sky.
Brightest star: Polaris, the North Star. Visible all year from the Northern Hemisphere; hidden from most of the Southern Hemisphere.
CassiopeiaAn unlabelled star chart: 5 stars joined by straight lines on a dark blue night sky.
Brightest star: Schedar. Best seen on November evenings; it never sets from most of Europe and Canada.
CepheusAn unlabelled star chart: 10 stars joined by straight lines on a dark blue night sky.
Brightest star: Alderamin. Best seen on October evenings; it never sets from most of Europe and Canada.
DracoAn unlabelled star chart: 15 stars joined by straight lines on a dark blue night sky.
Brightest star: Eltanin. Best seen on July evenings; it never sets from most of Europe and Canada.
PerseusAn unlabelled star chart: 23 stars joined by straight lines on a dark blue night sky.
Brightest star: Mirfak. Best seen on December evenings from the Northern Hemisphere.
AndromedaAn unlabelled star chart: 17 stars joined by straight lines on a dark blue night sky.
Brightest star: Alpheratz, with Mirach almost exactly as bright. Best seen on November evenings from the Northern Hemisphere.
PegasusAn unlabelled star chart: 14 stars joined by straight lines on a dark blue night sky.
Brightest star: Enif. Best seen on October evenings; visible from both hemispheres.
CygnusAn unlabelled star chart: 9 stars joined by straight lines on a dark blue night sky.
Brightest star: Deneb. Best seen on September evenings from the Northern Hemisphere.
LyraAn unlabelled star chart: 6 stars joined by straight lines on a dark blue night sky.
Brightest star: Vega. Best seen on August evenings from the Northern Hemisphere.
AquilaAn unlabelled star chart: 8 stars joined by straight lines on a dark blue night sky.
Brightest star: Altair. Best seen on September evenings; visible from both hemispheres.
HerculesAn unlabelled star chart: 17 stars joined by straight lines on a dark blue night sky.
Brightest star: Kornephoros. Best seen on July evenings from the Northern Hemisphere.
BoötesAn unlabelled star chart: 12 stars joined by straight lines on a dark blue night sky.
Brightest star: Arcturus. Best seen on June evenings from the Northern Hemisphere.
Corona BorealisAn unlabelled star chart: 7 stars joined by straight lines on a dark blue night sky.
Brightest star: Alphecca. Best seen on July evenings from the Northern Hemisphere.
AurigaAn unlabelled star chart: 9 stars joined by straight lines on a dark blue night sky.
Brightest star: Capella. Best seen on January evenings from the Northern Hemisphere.
OrionAn unlabelled star chart: 23 stars joined by straight lines on a dark blue night sky.
Brightest star: usually Rigel, though the variable Betelgeuse can rival it. Best seen on January evenings; visible from both hemispheres.

2Southern sky12 cards

Canis MajorAn unlabelled star chart: 11 stars joined by straight lines on a dark blue night sky.
Brightest star: Sirius, the brightest star in the night sky. Best seen on February evenings; visible from both hemispheres.
LepusAn unlabelled star chart: 11 stars joined by straight lines on a dark blue night sky.
Brightest star: Arneb. Best seen on January evenings; visible from both hemispheres.
EridanusAn unlabelled star chart: 27 stars joined by straight lines on a dark blue night sky.
Brightest star: Achernar. Best seen on December evenings; Achernar, at its southern end, is visible only south of about 33° N.
HydraAn unlabelled star chart: 18 stars joined by straight lines on a dark blue night sky.
Brightest star: Alphard. Best seen on April evenings; visible from both hemispheres. It is the largest of the 88 constellations.
CorvusAn unlabelled star chart: 5 stars joined by straight lines on a dark blue night sky.
Brightest star: Gienah. Best seen on May evenings; visible from both hemispheres.
CentaurusAn unlabelled star chart: 16 stars joined by straight lines on a dark blue night sky.
Brightest star: Rigil Kentaurus (Alpha Centauri), part of the nearest star system to the Sun. Best seen on May evenings from the Southern Hemisphere.
CruxAn unlabelled star chart: 4 stars joined by straight lines on a dark blue night sky.
Brightest star: Acrux. Best seen on May evenings from the Southern Hemisphere; it never rises over Europe. It is the smallest of the 88 constellations.
CarinaAn unlabelled star chart: 17 stars joined by straight lines on a dark blue night sky.
Brightest star: Canopus, the second-brightest star in the night sky. Best seen on March evenings from the Southern Hemisphere.
VelaAn unlabelled star chart: 8 stars joined by straight lines on a dark blue night sky.
Brightest star: Gamma Velorum. Best seen on March evenings from the Southern Hemisphere.
Triangulum AustraleAn unlabelled star chart: 3 stars joined by straight lines on a dark blue night sky.
Brightest star: Atria. Best seen on July evenings from the Southern Hemisphere; it never rises over Europe.
PavoAn unlabelled star chart: 10 stars joined by straight lines on a dark blue night sky.
Brightest star: Peacock. Best seen on September evenings from the Southern Hemisphere; it never rises over Europe.
GrusAn unlabelled star chart: 9 stars joined by straight lines on a dark blue night sky.
Brightest star: Alnair. Best seen on October evenings from the Southern Hemisphere.

3Zodiac12 cards

AriesAn unlabelled star chart: 4 stars joined by straight lines on a dark blue night sky.
Brightest star: Hamal. Best seen on December evenings; visible from both hemispheres.
TaurusAn unlabelled star chart: 12 stars joined by straight lines on a dark blue night sky.
Brightest star: Aldebaran. Best seen on January evenings; visible from both hemispheres. It also contains the Pleiades star cluster.
GeminiAn unlabelled star chart: 12 stars joined by straight lines on a dark blue night sky.
Brightest star: Pollux, slightly brighter than its twin Castor. Best seen on February evenings; visible from both hemispheres.
CancerAn unlabelled star chart: 5 stars joined by straight lines on a dark blue night sky.
Brightest star: Tarf (Beta Cancri). Best seen on March evenings; visible from both hemispheres. It is the faintest zodiac constellation.
LeoAn unlabelled star chart: 9 stars joined by straight lines on a dark blue night sky.
Brightest star: Regulus. Best seen on April evenings; visible from both hemispheres.
VirgoAn unlabelled star chart: 13 stars joined by straight lines on a dark blue night sky.
Brightest star: Spica. Best seen on May evenings; visible from both hemispheres. It is the largest zodiac constellation.
LibraAn unlabelled star chart: 6 stars joined by straight lines on a dark blue night sky.
Brightest star: Zubeneschamali. Best seen on June evenings; visible from both hemispheres.
ScorpiusAn unlabelled star chart: 14 stars joined by straight lines on a dark blue night sky.
Brightest star: Antares. Best seen on July evenings; visible from both hemispheres, but it rises higher from the Southern Hemisphere.
SagittariusAn unlabelled star chart: 25 stars joined by straight lines on a dark blue night sky.
Brightest star: Kaus Australis. Best seen on August evenings; visible from both hemispheres, but it rises higher from the Southern Hemisphere. The centre of the Milky Way lies in this direction.
CapricornusAn unlabelled star chart: 10 stars joined by straight lines on a dark blue night sky.
Brightest star: Deneb Algedi. Best seen on September evenings; visible from both hemispheres.
AquariusAn unlabelled star chart: 15 stars joined by straight lines on a dark blue night sky.
Brightest star: Sadalsuud. Best seen on October evenings; visible from both hemispheres.
PiscesAn unlabelled star chart: 22 stars joined by straight lines on a dark blue night sky.
Brightest star: Alpherg (Eta Piscium). Best seen on November evenings; visible from both hemispheres.

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Northern sky

An unlabelled star chart: 8 stars joined by straight lines on a dark blue night sky.

Published September 27, 2026