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The following types are distinguished in the CNGC:
d. IC Catalog
This is the complete IC catalog of a variety of objects that the
standard NGC catalog missed.
e. GCVS Catalog
This is a complete catalog of variable stars (shown at the
bottom of this page).
Variable stars from the GCVS are entered using a six digit
number. The first two digits, refer to the constellation where the
variable star is located and is listed in the table below.
The next four digits are assigned sequentially within each
constellation according to the standard sequence of variable-
star designations (R, S, ...).
Therefore, the first star in the constellation of Virgo would be
entered as: 860001.
f. Star Catalog
The STAR catalog contains the 250 brightest stars (STAR 1
through STAR 250), 100 interesting double stars (STAR 251
through STAR 350), plus Sigma Octantis, the southern pole
star (STAR 351).
g. M (Messier) Catalog
The M catalog has been the benchmark deep-sky catalog for
years. Recently expanded to 110 objects, the M (Messier)
catalog contains most of the best deep-sky objects.
h. Planet Catalog
The LX200 calculates the orbital positions of the eight major
planets for the current calendar date. To access a planet, use
the STAR key and enter the appropriate number as indicated
below: (NOTE: 903 is the Moon.)
OBJECT LIBRARY PLANET LEGEND
PLANET STAR # PLANET STAR#
MERCURY
901 SATURN 906
VENUS 902 URANUS 907
MARS 904 NEPTUNE 908
JUPITER 905 PLUTO 909
TYPE LEGEND DESCRIPTION
0 None Unverified Southern Object
1 OPEN Open Cluster
2 GLOB Globular Cluster
3 DNEB Diffuse Nebula
4 PNEB Planetary Nebula (or SN Remnant)
5 GAL Galaxy
6 OPEN + DNEB Open Cluster + Diffuse Nebula
7 None Non-Existent Object
8 STAR Star
9 MULTI+STAR Multiple Star
A MULTI+GAL Multiple Galaxy (Usually Interacting)
B DNEB Dark Nebula in front of Diffuse Nebula
C GAL+OPEN Open Cluster in External Galaxy
D GAL+GLOB Globular Cluster in External Galaxy
E GAL+DNEB Diffuse Nebula in External Galaxy
F GAL+OPEN+DNEB Open Cluster + Diffuse Nebula in Galaxy
S Object is also listed in the Sky Catalogue 2000
T Object is also listed in the Tirion Sky Atlas 2000
Code Const Code Const Code Const Code Const
01 AND 23 CIR 45 LAC 67 PSA
02 ANT 24 COL 46 LEO 68 PUP
03 APS 25 COM 47 LMI 69 PYX
04 AQR 26 CRA 48 LEP 70 RET
05 AQL 27 CRB 49 LIB 71 SGE
06 ARA 28 CRV 50 LUP 72 SGR
07 ARI 29 CRT 51 LYN 73 SCO
08 AUR 30 CRU 52 LYR 74 SCL
09 BOO 31 CYG 53 MEN 75 SCT
10 CAE 32 DEL 54 MIC 76 SER
11 CAM 33 DOR 55 MON 77 SEX
12 CNC 34 DRA 56 MUS 78 TAU
13 CVN 35 EQU 57 NOR 79 TEL
14 CMA 36 ERI 58 OCT 80 TRI
15 CMI 37 FOR 59 OPH 81 TRA
16 CAP 38 GEM 60 ORI 82 TUC
17 CAR 39 GRU 61 PAV 83 UMA
18 CAS 40 HER 62 PEG 84 UMI
19 CEN 41 HOR 63 PER 85 VEL
20 CEP 42 HYA 64 PHE 86 VIR
21 CET 43 HYI 65 PIC 87 VOL
22 CHA 44 IND 66 PSC 88 VUL