# AdNo Activity λ λ☉[beg-end] Ra De ΔRa ΔDe Vg LoR SLoR LaR Theta Phi a q e Peri Node Inc N
1 000 annual 19.2 - 303.71 44.48 - - 39.0 326.12 306.93 61.51 112.42 161.94 3.863 0.898 0.768 139.81 19.2 66.41 30
2 001 annual 16.0 7.0 - 23.0 299.0 40.2 0.5 0.3 42.04 316.11 300.11 59.08 116.39 163.28 - - - - - - 402
3 002 annual 32.0 15.0 - 36.0 309.5 42.5 0.64 0.26 43.0 331.63 299.63 57.79 117.6 162.7 3.93 0.9 0.78 140.5 31.5 74.9 64
4 004 annual 23.98 1.49 - 44.88 306.3 42.3 0.94 0.21 43.0 327.48 303.5 58.71 115.66 161.46 6.12 0.893 0.854 140.4 24.0 73.4 145

References
  1. Sekanina, 1976 (In Sekanina 1976, the shower name is April Cygnids (Tab. VI, p. 276))
  2. Molau & Rendtel, 2009
  3. Jenniskens et al., 2016
  4. Shiba,2023, submitted to wgn.