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Constellations / Lacerta

Lacerta

Lacertae

Northern 201 sq° Lac

Brightest star: Alpha Lacertae

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Mythology

The Lizard, created by Hevelius in 1687 to fill a gap between Cygnus and Andromeda. No classical mythology.

Observing Highlights

Lies in a rich Milky Way field. Contains the open cluster NGC 7243 and BL Lacertae, prototype of a class of active galactic nuclei.

Main Stars

20
Alpha Lac

HIP 111169; Alpha Lac; 7 Lac

3.77 mag 46.7″ B: 11.8 A1.5V
1 Lac

HIP 109937; 1 Lac

4.13 mag K3-II-III
5 Lac

HIP 111022; 5 Lac

4.36 mag 0.1″ M0II+B8V
Beta Lac

HIP 110538; Beta Lac; 3 Lac

4.43 mag 0.2″ G8.5IIIbCa1
11 Lac

HIP 111944; 11 Lac

4.46 mag K2+III-IIIb
HIP 109754
4.49 mag 30.5″ B: 10.6 K3III
6 Lac

HIP 111104; 6 Lac

4.51 mag B2IV
2 Lac

HIP 110351; 2 Lac

4.57 mag 47.6″ B: 11.5 B6V
4 Lac

HIP 110609; 4 Lac

4.57 mag B9Iab
9 Lac

HIP 111674; 9 Lac

4.63 mag 14.8″ B: 9.8 A8IV
10 Lac

HIP 111841; 10 Lac

4.88 mag 62.6″ B: 10.3 O9V
15 Lac

HIP 112917; 15 Lac

4.94 mag 23.6″ B: 11.9 M0III
HIP 113288
4.95 mag K5Ib
13 Lac

HIP 112242; 13 Lac

5.08 mag 14.4″ B: 10.9 K0III
HIP 109102
5.14 mag K5III
HIP 111795
5.21 mag 31.8″ B: 10.5 M4+III
12 Lac

HIP 112031; 12 Lac

5.25 mag B2III
HIP 109521
5.40 mag 37.8″ B: 11.0 A5V
HIP 112731
5.43 mag K1III
EW Lac

HIP 113327

5.43 mag B4IIIep

Double Stars

15
8 Lac

HIP 111546; 8 Lac

5.73 mag 22.5″ B: 6.3 B2Ve
HIP 110171
6.17 mag 15.8″ B: 8.8 A9IIIp
HIP 112241
5.95 mag 2.8″ B: 8.9 K5III+K2III
15 Lac

HIP 112917; 15 Lac

4.94 mag 23.6″ B: 11.9 M0III
HIP 109754
4.49 mag 30.5″ B: 10.6 K3III
HIP 111795
5.21 mag 31.8″ B: 10.5 M4+III
HIP 113222
5.74 mag 52.1″ B: 9.2 B7III
13 Lac

HIP 112242; 13 Lac

5.08 mag 14.4″ B: 10.9 K0III
9 Lac

HIP 111674; 9 Lac

4.63 mag 14.8″ B: 9.8 A8IV
HIP 110790
6.46 mag 4.3″ B: 9.6 B2V
Alpha Lac

HIP 111169; Alpha Lac; 7 Lac

3.77 mag 46.7″ B: 11.8 A1.5V
2 Lac

HIP 110351; 2 Lac

4.57 mag 47.6″ B: 11.5 B6V
HIP 111869
6.03 mag 20.7″ B: 12.5 G3Ib-IICN-1CH2Fe-1
16 Lac

HIP 113281; 16 Lac

5.59 mag B2IV
HIP 113174
5.91 mag 9.5″ B: 14.7 F5II

Variable Stars

4
AR Lac

HIP 109303

6.11 mag G2IV+K0III
12 Lac

HIP 112031; 12 Lac

5.25 mag B2III
EW Lac

HIP 113327

5.43 mag B4IIIep
16 Lac

HIP 113281; 16 Lac

5.59 mag B2IV

Deep Sky Objects

30
Open Cluster (6)
C16

NGC 7243

6.4 mag 21
NGC 7209
6.7 mag 25.
NGC 7245
9.2 mag 5.
IC 1434
9.0 mag 8.
NGC 7296
10.0 mag 4.
IC 1442
9.1 mag
Galaxy (23)
IC 1441
— mag 0.9 SBb
NGC 7197
14.0 mag Sa
NGC 7223
13.0 mag SBc
NGC 7228
15.0 mag SBa
NGC 7231
14.0 mag SBa
NGC 7250
13.0 mag Scd
NGC 7264
14.0 mag Sb
NGC 7282
15.0 mag Sb
NGC 7379
14.0 mag SBa
NGC 7263
— mag 0.8 S0-a
NGC 7242
12.0 mag 2.6
NGC 7240
13.8 mag 0.8 E-S0
NGC 7274
14.0 mag 1.8 E
IC 5191
— mag 0.8 S0-a
NGC 7248
14.0 mag 2.1 E-S0
IC 5192
— mag 0.2
IC 5180
15.0 mag 1.1 E
NGC 7227
15.0 mag S0
NGC 7273
15.0 mag S0
NGC 7395
15.0 mag S0
IC 5195
— mag
IC 5193
— mag E
NGC 7265
13.0 mag E-S0
Planetary Nebula (1)
IC 5217
13.0 mag 0.1