ドリフトチャート (2019 Apparition - mid-NEB/NEBZ)

Color +9° white marking +10° white marking +11° white marking +12° white marking
+13° white marking >+14° white marking
Shape center p. end f. end
NEBW1 NEBW2 NEBW2 NEBW3 NEBW4 NEBW4 NEBW5 NEBW5

特殊経度(体系IIに対して-4.0°/day)によるドリフトチャート

Color +9° white marking +10° white marking +11° white marking +12° white marking
+13° white marking >+14° white marking
Shape center p. end f. end
NEBW1 NEBW2 NEBW3 NEBW4 NEBW5

自転周期

模様記号期間自転周期ドリフト測定数観測期間観測経度緯度衝の経度風速(m/s)
NEBZ white spotNEBW19h53m26.8s±8.2s-3.270±0.199182019/02/21－2019/03/24344.0－238.9+11.9±0.7351.1±3.2+42.5±2.8
NEBZ white spotNEBW29h52m36.4s±5.2s-4.509±0.127142019/02/17－2019/03/1435.7－284.6+11.0±0.4250.2±1.5+60.2±1.8
NEBZ white spotNEBW39h52m14.9s±6.0s-5.039±0.147312019/05/25－2019/06/26333.3－175.2+10.7±0.8253.6±2.4+67.8±2.1
NEBZ white spotNEBW49h52m28.0s±7.2s-4.715±0.175172019/07/12－2019/08/1236.2－247.8+11.3±0.4191.4±2.7+63.1±2.5
NEBZ white spotNEBW59h52m06.2s±5.3s-5.254±0.128182019/07/22－2019/08/129.3－261.4+11.0±0.5233.5±1.3+70.8±1.8