Astronomy

(Marcin) #1
CORONA
AUSTRALIS

TELESCOPIUM

SCUTUM

LACERTA

LY R A

VULPECULA
SAGITTA

AQUILA

DELPHINUS

EQUULEUS

AQUARIUS

CAPRICORNUS

CYGNUS

MICROSCOPIUM SAGITTARIUS

GRUS

INDUS

PISCIS
AUSTRINUS

PEGASUS

SCULPTOR

CETUS

CAMELOPARDALIS

URSA

MINOR

NCP
CASSIOPEIA

PERSEUS

CEPHEUS

DRACO

PISCES

TRIANGULUMANDROMEDA

M16
M17

M20

M8

M^7

M22

M57

Vega

M27

Enif M15

Deneb

Altair

Fomalhaut

M82

M81

M33
M31

M11

NGC 869 Polaris

NGC 884

Pa
th

(^) of
(^) th
e (^) S
un
(^) (e
cli
pti
c)
38 ASTRONOMY • SEPTEMBER 2017
STAR
DOME
Sirius
0.0
1.0
2.0
E
N
S
NE
SE
3.0
4.0
5.0
STAR
MAGNITUDES
STAR COLORS
A star’s color depends
on its surface temperature.



  • The hottest stars shine blue

  • Slightly cooler stars appear white

  • Intermediate stars (like the Sun) glow yellow

  • Lower-temperature stars appear orange

  • The coolest stars glow red

  • Fainter stars can’t excite our eyes’ color
    receptors, so they appear white unless you
    use optical aid to gather more light


How to use this map: This map portrays the
sky as seen near 35° north latitude. Located
inside the border are the cardinal directions
and their intermediate points. To find
stars, hold the map overhead and
orient it so one of the labels matches
the direction you’re facing. The
stars above the map’s horizon
now match what’s in the sky.

The all-sky map shows
how the sky looks at:
10 P.M. September 1
9 P.M. September 15
8 P.M. September 30
Planets are shown
at midmonth
Free download pdf