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Variable objects in Delphinus

Lightcurves: C-LC = Current or Recent, P-LC = 'Pixel' Long-term, A-LC = from Articles, O-LC = Others.
Magnitude ranges are the extreme observed limits.

R Delphini
Type: M
Period: 285.07d
Coords: (2000) 20h14m55s +0905'17"
Magnitude range: 8.00 to 11.40
Total observations: 18

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1990..                                   1   12    1
2000..     4

S Delphini
Type: M
Period: 277.75d
Coords: (2000) 20h43m05s +1705'20"
Magnitude range: 8.30 to 12.60
Sequence chart: RGA1963
Total observations: 616

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1960..                        92   61   44   57   62   59
1970..         47   74   76   29
1990..                                   3    2    6    2
2000..     2

U Delphini
Type: SRB | P-LC
Period: 110d?
Coords: (2000) 20h45.5m +1806'
Magnitude range: 6.00 to 8.00
Sequence chart: 228.01 | @
Total observations: 4314

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1970..        213  140  318  313  223  252  145  100   81
1980..             186                           285  213
1990..   144  176  184  262  256  240   64   55  235  145
2000..    84

X Delphini
Type: M
Period: 281.04d
Coords: (2000) 20h54m53s +1738'34"
Magnitude range: 9.00 to 13.70
Total observations: 9

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1990..                                   4    1    1    1
2000..     2

CM Delphini
Type: Irr
Coords: (2000) 20h24m55s +1718'24"
Magnitude range: 13.40 to 14.20
Total observations: 32

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
2000..    32

EU Delphini
Type: SRB | P-LC
Period: 60d
Coords: (2000) 20h37.9m +1816'
Magnitude range: 5.48 to 7.55
Sequence chart: 228.01 | @
Total observations: 4470

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1970..        220  185  308  357  227  258  153  101   83
1980..             209                           287  205
1990..   164  171  182  282  259  249   65   56  226  134
2000..    89

HO Delphini
Type: UG?
Period: 212.4d?
Coords: (2000) 20h36m57s +1403'23"
Magnitude range: ? to [15.10
Sequence chart: GMH921017
Total observations: 27

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1990..               5   22

HR Delphini (Nova 1967)
Type: NB | P-LC | O-LC
Coords: (2000) 20h42.3m +1910'
Magnitude range: 3.32 to 12.90
Sequence chart: JEI1972
Total observations: 8343

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1960..                                      994  897  533
1970..   345  273  203  196  216  240  127   63   84  116
1980..   151  176  202  216  255  232  358  357  283  255
1990..   189  172  121  129  125  166  130   95  159  167
2000..   118

IO Delphini
Type: UG
Coords: (2000) 20h26.5m +1830.6'
Magnitude range: ? to [15.80
Total observations: 254

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1990..                             36   64   52   33   36
2000..    33

MV Delphini (NSV13150) | Suspected Binocular Variables in Hipparcos data
Type: SR | P-LC
Period: 25.099d?
Coords: (2000) 20h34.8m +1932'
Magnitude range: 7.05 to 8.07
Sequence chart: 228.01 | @
Total observations: 1328

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1970..         20        85  122  112  121   90   36   52
1980..    35   73   73   82   78   43   95   47
1990..                        65   18    4   18   19   27
2000..    13

NSV13242 Delphini
Type: not listed
Coords: (2000) 20h42m23s +1923'46"
Magnitude range: 7.50 to 7.80
Total observations: 29

Annual
totals   ++0  ++1  ++2  ++3  ++4  ++5  ++6  ++7  ++8  ++9
1990..                                                 16
2000..    13


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