2020-05-01_Astronomy

(lily) #1
`

` _

a `

b

_

_

_

_

OCTANS

CRUX

CENTAURUS
NORMA

LUPUS

LIBRA

SERPENS
CAPUT

OPHIUCH

SCORPIUS

CARINA

VELA

ANTLIA

PYXIS

HYDRA

CRATER

SEXTANS

CORVUS

ARA

SCOPIUM

PAVO
TRIANGULUM

AUSTRALE

CIRCINUS

CHAMAELEON

VOLANS HYDRUS
MENSA

LEO

COMA
BERENICES

CANES
VENATICI

VIRGO

BOÖTES
CORONA
BOREALIS

HERCULE

NGC
5139

NGC
3372

NGC 2516

NGC 5128

NGC 104

NGC 2070

NGC 6397

NGC 4755

NGC^6231

LMC

SMC

Denebola

Alphard

Antares

Arcturus
M64

M66

M104

M65

NGP

M51

M13

M6
M4

M83

SCP

M5

Spica

Path^ of^ the^ Sun^ (e
cliptic)

W

N

S

NW

SW

HOW TO USE THIS MAP
This map portrays the sky as seen
near 30° south 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:
9 P.M. July 1
8 P.M. July 15
7 P.M. July 31
Planets are shown
at midmonth

MAP SYMBOLS
Open cluster
Globular cluster
Diffuse nebula
Planetary nebula
Galaxy

STAR
MAGNITUDES
Sirius
0.0
1.0
2.0

3.0
4.0
5.0

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


STAR DOME


BEGINNERS: WATCH A VIDEO ABOUT HOW TO READ A STAR CHART AT
http://www.Astronomy.com/starchart.
Free download pdf