Open Access
Table D.1.
List of the different classes within the McIntosh classification of sunspot groups.
| Z | ||||||||
|---|---|---|---|---|---|---|---|---|
| p | A | B | C | D | E | F | H | c |
| x | Axx (1) | - | - | - | - | - | - | x |
| - | Bxo (2) | - | - | - | - | - | o | |
| - | Bxi (3) | - | - | - | - | - | i | |
| - | - | - | - | - | - | - | c | |
| r | - | - | - | - | - | - | Hrx (4) | x |
| - | - | Cro (9) | Dro (19) | Ero (33) | Fro (47) | - | o | |
| - | - | Cri (10) | Dri (20) | Eri (34) | Fri (48) | - | i | |
| - | - | - | - | - | - | - | c | |
| s | - | - | - | - | - | - | Hsx (5) | x |
| - | - | Cso (11) | Dso (21) | Eso (35) | Fso (49) | - | o | |
| - | - | Csi (12) | Dsi (22) | Esi (36) | Fsi (50) | - | i | |
| - | - | - | Dsc (23) | Esc (37) | Fsc (51) | - | c | |
| a | - | - | - | - | - | - | Hax (6) | x |
| - | - | Cao (13) | Dao (24) | Eao (38) | Fao (52) | - | o | |
| - | - | Cai (14) | Dai (25) | Eai (39) | Fai (53) | - | i | |
| - | - | - | Dac (26) | Eac (40) | Fac (54) | - | c | |
| h | - | - | - | - | - | - | Hhx (7) | x |
| - | - | Cho (15) | Dho (27) | Eho (41) | Fho (55) | - | o | |
| - | - | Chi (16) | Dhi (28) | Ehi (42) | Fhi (56) | - | i | |
| - | - | - | Dhc (29) | Ehc (43) | Fhc (57) | - | c | |
| k | - | - | - | - | - | - | Hkx (8) | x |
| - | - | Cko (17) | Dko (30) | Eko (44) | Fko (58) | - | o | |
| - | - | Cki (18) | Dki (31) | Eki (45) | Fki (59) | - | i | |
| - | - | - | Dkc (32) | Ekc (46) | Fkc (60) | - | c | |
Notes. The information is from McIntosh (1990). The numbers in parentheses signify the number of the corresponding class in Fig. D.1.
Z ... Modified Zurich Class
p ... Penumbra of the largest sunspot
c ... Sunspot distribution
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.