WISEPA J031325.96+780744.2 (designation abbreviated to WISE 0313+7807, or WISE J0313+7807) is a planetary-mass object[4] of spectral class T8.5,[1][2] located in constellation Cepheus at approximately 21 light-years from Earth.

[5] WISE 0313+7807 was discovered in 2011 by J. Davy Kirkpatrick et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011.

In 2011 Kirkpatrick et al. published a paper in The Astrophysical Journal Supplement, where they presented discovery of 98 new found by WISE brown dwarf systems with components of spectral types M, L, T and Y, among which also was WISE 0313+7807.

[1][note 1] Currently the most accurate distance estimate of WISEPA J031325.96+780744.2 is a trigonometric parallax, published in 2019 by Kirkpatrick et al.: 134.3 ± 3.6 mas, corresponding to 7.4+0.2−0.2 pc, or 24.3+0.7−0.6 ly.

[3] The best estimate is marked in bold.