Abbreviations
Abbreviations used in observation accounts
|
2MASS |
2 Microns All Sky Survey |
|
a/b |
Relationship of ellipticity (great axe/minor axe) |
|
AGC |
Abell Galaxy Clusters |
|
AH |
Arne Henden |
|
AP |
Position angle |
|
B |
Johnson magnitude Johnson in blue |
|
BS CCM |
Dark strip Carrenza, Crillon, Monet, 1969, A & A, 1:479C |
|
CL |
Luminous condensation |
|
CS |
Central Surface |
|
CS* |
Central Star |
|
C/S |
Colour/Saturation |
|
D |
Total diameter |
|
DS* |
Double Star |
|
DSS |
Digital Sky Survey |
|
d |
Partial diameter |
|
E |
east |
|
ER* |
Reference star |
|
ESO |
European Southern Observatory |
|
FJJ |
Ford – Jacoby – Jenner |
|
hu |
humidity |
|
IRAS |
Infra-Red Sky Survey |
|
J |
day |
|
H |
Altitude on the horizon |
|
HCG |
Hickson Compact Groups |
|
HK83 |
Hodge – Kennicut, catalogue of HII regions in 125 galaxies, 1983. |
|
L |
sky quality meter – Lensed (SQM 2nd generation) |
|
L |
Luminosity (absolute scale: 1 lowest limit to 10 totally saturated) |
|
L |
Luminosity (relative scale: +1, +2, etc, difference in relation to the background |
|
L |
Lyndsey |
|
mvlon |
visual magnitude limited to the naked eye |
|
MW |
Milky Way |
|
N |
night |
|
N |
North |
|
NOAO |
North American Observatory |
|
NP |
Planetary nebulae |
|
NS* |
Stellar nucleus |
|
ns |
non significant |
|
O |
Opacity (absolute scale : from 1 just perceptible to 6 total) |
|
O |
Opacity (relative scale : + well visible, ++ high, +++ very high) |
|
OHP |
Observatory of Haute Provence |
|
P |
Luminous pollution (1 very good to 5 very bad) |
|
PNIC |
Planetary Nebulae Image Catalogue |
|
Q |
sky quality meter |
|
R |
Wind gales (Beaufort scale) |
|
R |
Johnson magnitude in the red |
|
S |
turbulence, Seeing (1 very good to 5 very bad) |
|
S |
south |
|
SB |
Surface Brightness |
|
SDSS |
Sloan Digital Sky Survey |
|
SDT |
Saha – Dolphin – Thim |
|
sf |
without filtre |
|
SHK |
Shakhbazian |
|
SL |
Shapley – Lyndsey |
|
SPC |
Sivan – Petit – Comte |
|
T |
transparence (1 very good to 5 very bad) |
|
UT |
Universal Time |
|
V |
wind (Beaufort scale) |
|
V |
Visual (Johnson magnitude in the yellow) |
|
V |
Direct vision (from 1 obvious to 3 limit) |
|
VI |
Indirect vision (from 1 viewed 100% of the time to 5 viewed <10% of the time) |
|
VV |
Verontsov – Veliaminov |
|
v |
visual magnitude |
|
W |
west |
|
x |
enlargement |
|
Z |
zenith |
|
* |
star (ex : A* => star A) |
|
+ |
beautiful |
|
++ |
very beautiful |
|
+++ |
exceptional |
|
– |
mediocre |
|
– |
bad |
|
— |
very bad |
|
~ |
approximately |
|
? |
uncertain |
|
! |
surprising |